What Does It Mean???

Graph of Mean Turtle Weights

A good friend and colleague of mine likes to say when it comes to analyzing data, “what does it mean?”  To the left, is a graph of the mean weight of the Blanding’s turtle hatchlings.  The three elementary schools, the other 2010 hatchlings, and the data from the 2008 and 2009 hatchlings are all represented here.   Take a close look at the graph (you can click on it to enlarge it) and then answer the following questions.  Make sure you use complete sentences, label your answers, and make sure you use grams in your answers and not (g).

a.  What do you notice about the Thoreau hatchlings compared to the other hatchlings.  Why do you think this is so?

b.  In general, how do all the 2010 hatchlings compare to the 2008 and 2009 hatchlings?  Why do you think there is a difference?

 

 

 

Some of mother 2031's hatchlings

What Does It Mean?  Part Two

When I was looking at the data this weekend, I noticed some really interesting pieces of data and was wondering what you thought about this data.  So, take a look at this chart and answer a few questions about this data.

Chart Comparing Mother 2031's Hatchlings

a.  What is the range of the January weights for Turtle #2031’s hatchlings?

b.  Do you think this range is typical if you looked at Yertle and Bowser’s mother’s hatchlings in January?

c.  What are the outliers for these hatchlings?

d. What is the median weight for these hatchlings?

2031's nest

e.   How does  Yertle at 68 grams and Bowser at 70 grams compare to the median weight of these hatchlings?

f.  What might account for the weights of this particular bunch of hatchlings?

One of 2031's hatchlings hatching!

 

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Posted on January 10, 2011, in Blanding's turtles, Data Analysis and tagged , . Bookmark the permalink. 30 Comments.

  1. Part Øne

    a. I noticed that the Thoreau hatchlings weighed more than the other hatchlings I think it’s because the other hatchlings might be getting fed less than the Thoreau hatchlings so the Thoreau hatchlings weigh more.

    b. The 2010 hatchlings compare to the 2009 and 2008 hatchlings good because they weigh more than the 2009 and 2008 hatchlings. I think it might be because they had different food that the turtles didn’t like but then in 2010 they bought different food and the turtles liked it more so they ate more.

    Part Twø

    a. The range of the January weights of #2031’s turtles is 26 grams-96 grams.

    b. I think Yertle and Bowser’s mother’s range for weights of her turtles would be lower weights because some of them live in the wild.

    c. The outliers for the hatchlings weights are 96 and 26.

    d. The median for the hatchlings weights is 74.

    e. The median of #2031’s hatchlings compared to Yertle and Bowser’s weight is bad because the median of the other hatchlings is more than Yertle and Bowser’s weight.

    f. Good health and won’t starve.

  2. Part One
    Q: What do you notice about the Thoreau hatchlings compared to the other hatchlings?
    A: I notice that the Thoreau hatchlings are the highest “dots” except for the first time the Thoreau “dot” was there. The first time, Other 2010 was highest.
    Q: Why do you think this is so?
    A: Maybe Thoreau is highest because maybe Thoreau is taking the time to feed the turtles, while other places (Alcott, Willard, Other 2010, 2009, and 2008) are just giving them a certain amount of pellets, say 30, or 25 or something.
    Q: In general, how do all the 2010 hatchlings compare to the 2008 and the 2009 hatchlings?
    A: 2010 hatchlings are way, way, WAY higher than 2009 and 2008. Except for the second time around of “dots”, the first time Alcott, Thoreau, Willard, and Other 2010 were there. That time they were all close together because everyone had just gotten their Blanding’s turtles, and so they weren’t gaining weight yet – the Blanding’s turtles were getting used to their new home.
    Q: Why do you think there is a difference?
    A: I think there is a difference because maybe 2009 and 2008 were inexperienced than 2010 turtles. Probably, the people in 2009 and 2008 were just starting out, they were the guinea pigs.

    Part Two
    Q: What is the range of the January weights for Turtle #2031’s hatchlings?
    A: The range for the January weights for Turtle #2031’s hatchlings is 26 grams to 96 grams.
    Q: Do you think this range is typical if you looked at Yertle and Bowser’s mother’s hatchlings in January?
    A: I do think the range is typical since Yertle and Bowser are 68 grams to 70 grams. Except for the turtle #144, 26 grams, the turtles are typical Blanding’s turtle weight.
    Q: What are the outliers for these hatchlings?
    A: 26 grams (#144), 38 grams (#140), and 96 grams (#141).
    Q: What is the median weight for these hatchlings?
    A: 70 1/2 is the median weight for the hatchlings.
    Q: How does Yertle at 68 grams and Bowser at 70 grams compare to the median weight of these hatchlings?
    A: Pretty good, since Yertle is at 68 grams and the median weight is 68 grams. But the median of Yertle and Bowser is 79 1/2 grams, so to be perfect the median weight should be that. But, it’s really good.
    Q: What might account for the weights of this particular bunch of hatchlings?
    A: They will have an easier time getting away from the jaws of predators – they won’t get swallowed as easily. They also will probably have good health records.

  3. Part 1

    Question A- What do you notice about the Thoreau hatchlings compared to the other hatchlings. Why do you think this is so?

    Answer A- I noticed that the Thoreau hatchlings are mostly all heavier than the other hatchlings. I think that is so because maybe that Thoreau got the hatchlings first and started feeding them sooner or Thoreau gives the hatchlings more to eat.

    Question B- In general, how do all the 2010 hatchlings compare to the 2008 and 2009 hatchlings? Why do you think there is a difference?

    Answer B- The comparisons of the 2010 against the 2009 and 2008 are
    Different
    • 2009 and 2008 grow a little at a time and the 2010 do the opposite.
    • 2008 and 2009 hatchlings didn’t get to the ages of the 2010 turtles did.
    I think this is different because of the weather. When warm weather is here the turtles will eat more, which will make them gain more. If the cold weather is here the turtles will loose their appetite and won’t gain much.

    Part 2

    Question A- What is the range of the January weights for Turtle #2031′s hatchlings?

    Answer A- The range for January weight of turtle #2031’s hatchling’s 26 grams- 96 grams.

    Question B- Do you think this range is typical if you looked at Yertle and Bowser’s mother’s hatchlings in?

    I think this is the typical weight for Yertle and Bowser’s mother’s hatchlings because if you look way back in November we were studying the weights and Bowser is the heaviest and the least heavy was a 15-20 gram turtle.

    Question C- What are the outliers for these hatchlings?

    Answer C- The outliers for the hatchling’s are 96 grams and 26 grams.

    Question D- What is the median weight for these hatchlings?

    Answer D- The median for the hatchlings is 67 grams.

    Question E- How does Yertle at 68 grams and Bowser at 70 grams compare to the median weight of these hatchlings?

    Answer E- Yertle is 1 grams more and Bowser is 3 grams heavier than the median. So I would say that it is going pretty good.

    Question F- What might account for the weights of this particular bunch of hatchlings?

    Answer F- They hatchling’s will have a better chance of not getting eaten and will know how to catch their own.

    This is just a quick question.
    On the first graph there was only 3 turtles shown. Why were there not how many turtles should have been?

  4. Part One
    Answer 1. I noticed that some of the Thoreau hatchlings age was a lot and it was probably cause they get to eat a lot. Where as the other turtles might not get as much food.

    Answer 2.In general the 2010 hatchlings are really, really,REALLY a lot more heavier than the 2008 and the 2009 hatchlings. I think it is because we give our turtles healthier food and more food.

    Part Two
    Answer 1. The range of the January weights for Turtle #2031’s hatchlings is 26 grams – 96 grams.

    Answer 2. I think the the range is typical cause Yertle and Bowser weights are 68 grams – 70 grams.Except for #140 and # 144 because they weigh 26 grams and 38 grams.

    Answer 3. 26 grams, 38 grams and 96 grams are the outliers.

    Answer 4. The median weight for the hatchlings is 67 grams.

    Answer 5. Good, because Yertle weights 68 grams and they median weight is 67 grams.

    Answer 6. They would most likely be strong, healthy, big and will probably live a long life if they keep up with the good work(maybe they will be the “famous clan of healthy turtles.”)

  5. Part one.
    A.The Thoreau turtle started not so good but they caught up and passed the other turtle’s weight. I think that happened because the Thoreau turtles began to eat a lot.
    B. The 2010 turtles are bigger than the 2009 and 2008 turtles. Maybe we found better food source.
    Part two.
    A. The range of the mother Blanding’s turtle #2031’s hatching weight range is 26 grams to 96 grams.
    B. I think the range will be some thing like 12 grams to 73 grams because some weren’t head started.
    C.The outlier weight is 26 grams.
    D. The median weight is 67 grams.
    E. Yertle’s weight is near the median for the 2031’s Hatching’s weight.
    F. Because if its a low, the hatchling must have been born in October and if the weight was high, the hatchling must have been born in August.

  6. Part One
    a. I noticed that the Thoreau hatchlings were lower than the other hatchlings at first but then became the heaviest by about 3 grams. I think that is because we have Yertle and Bowser who are very heavy.

    b. I think the 2010 hatchlings compared to the 2008 and the 2009 hatchlings are doing better. I think there is a difference because teachers and zoos have more experience with the turtles.

    Part Two
    a. The range for hatchlings of mother 2031 is 26 grams to 96 grams.

    b. I think the range is typical to Yertle and Bowers mother because there are some turtles that don’t eat a lot and some that eat a ton like what happened in the hatchlings of mother 2031.

    c. The outliers for the 2031 hatchlings are 96 grams and 26 grams.

    d. The median weight for the hatchlings of mother 2031 is 67 grams.

    e. Yertle and Bowser compared to the median weight of the 2031 hatchlings are doing really good. I think this because Yertle and Bowser are over the median weight.

    f. I think the cause for these hatchlings of mother 2031 success is because they went to good teachers or zoos and because they weren’t picky by just eating worms or something.

  7. The graph shows that the turtles are heavier than the other turtles at the other Concord schools. That is because on the left, it shows thier weight, and they are always at the top. On the bottom, it shows their age, and they are always at the top.

  8. It shows that the 2008 and the 2009 are lighter than the other turtles in the other Concord schools. That is because on the left it shows their weight, and they are always on the bottom. On the bottom it shows their age, they are always on the bottom.

  9. Part One

    A. Thoreau hatchlings seemed to weigh more than all other groups even though the other groups mostly have more turtles. I think Thoreau could be feeding the turtles more food or the water in the turtle’s tank could be warmer so they will eat more.
    B. The 2010 turtles are bigger than the 2009 and 2008 hatchlings. I think this has occurred because the elementary schools have learned over time on how to feed the hatchlings.

    Part Two

    A. The range for the hatchlings weight from mother 2031 in January is 26 – 96grams
    B. The middle of the range is typical. But, the 26 grams is very low and the 96 gram weight is very high.
    C. The outlier is 26grams.
    D. The median weight is 67grams.
    E. Yertle and Bowser close to the median weight because the median weight is 67grams and they are 68grams and 70grams and they are around the median.
    F. The weights might be different because some places are feeding the turtles more food than others, while others are feeding them less.

  10. The range of the January weights is 96 and 26 grams.

  11. The median number of question D is 67.

  12. I am on letter F. If you count up all the hatchlings weights then you would get 584 grams all together.
    Have A Great Day!
    ec11

  13. PART ONE

    a. I noticed that the Thoreau turtles weigh a lot. I think they weigh a lot because we feed them like everyday.

    b. They all compare because each year the turtle weights like stayed in the same place. I think there is a difference because we all probably feed them different amounts.

    PART TWO

    A. The range for January weights turtle #2031 hatchlings is 26 grams to 96 grams.

    B. I think the range is not typical because the lowest number in the range is 26 grams I thought it would be higher.

    c. The outliers are 26 grams and 38 grams.

    d. The median weight is 67 grams.

    e. Yertle weighs 68 grams and Bowser weighs 70 grams they compare to 67 grams because Yertle is only 1 gram away and Bowser is 3 grams away.

    f. I think the weights are like this because some of the turtles might have hatched earlier so they ate more.

  14. a.  What do you notice about the Thoreau hatchlings compared to the other hatchlings.  Why do you think this is so?
    I noticed that the 2008 hatchlings overall weigh less than all of the other turtles. 
    Two out of three times the Thoreau turtles weighed more than the other turtles of the same age. One of the three times one of the other turtles in the 2010 hatchling group weighed more than a Thoreau turtle by a fraction of a gram.  I think these reasons are like this because:
    in 2008 they might not have known all of the things about the Blanding’s turtle that we do now
    they might have fed the Thoreau turtles more than the other people are feeding their turtles
    our turtles might just eat more.

    b.  In general, how do all the 2010 hatchlings compare to the 2008 and 2009 hatchlings?  Why do you think there is a difference?
    I think that the 2010 turtles compare to the 2008 turtles by their difference in mean weight.  Their difference is that is the 2010 hatchlings at forty days old on average their mean weight was about 13 grams-15 grams.  When the 2008 hatchlings at forty days old mean weight was about 10 grams.  The 2010 hatchlings compare to the 2009 hatchlings by their contrast in mean weights.  The data shows that the 2009 hatchling’s mean weight was usually less than 2010 hatchling’s mean weight.  For example:
    a 2010 hatchling about forty days old mean weight was about 14 grams, a 2009 forty days old hatchling’s mean weight was about 10 grams.

    A(#2). What is the range of the January weights for Turtle #2031′s hatchlings?
    The range of the January weights for turtle #2031’s hatchlings is 26 grams-96 grams.  
    b.(#2) Do you think this range is typical if you looked at Yertle and Bowser’s mother’s hatchlings in January?
    No, I think that Bowser and Yerlte’s mom’s hatchling would have a higher range. I think this because I remembered that mother 2033(their mother) had a lot of head-started babies. Which would mean that they got more food so they would weigh more.

    c.  What are the outliers for these hatchlings?
    The outliers for these hatchlings are 26 grams, 53 grams, 38 grams, and 96 grams.

    d. What is the median weight for these hatchlings?
    The median weight for these hatchlings is 67 grams.

    e.   How does  Yertle at 68 grams and Bowser at 70 grams compare to the median weight of these hatchlings?
    Yertle and Bowser compare to the median weight of these hatchlings by their slight difference in weight.  Yertle is only one gram more than the median weight, when Bowser is only three grams more than the median weight of the hatchlings.

    f.  What might account for the weights of this particular bunch of hatchlings?

    A couple of things that might account for the weight of this particular bunch of turtles are:
    being fed less food
    they might naturally eat less
    have a sickness or
    not like the food that they are being fed

  15. Part1
    I think that the Thoreau turtles are on the heavier side because maybe the turtles at the other schools eat a different food and the the turtles here like the food better and they eat more. I also think that they weigh more because none of the turtles at Thoreau got switched out with one of Dr.Windmiller’ turtles because they were not eating and if they aren’t eating, they don’t weigh as much.
    In general, I think that the 2010 hatchlings are definitely a lot heavier than the 2009 and 2008 hatchlings. The 2009 and 2008 hatchlings were always at the bottom and the 2010 hatchlings were always at the top. I think that is because the hatchlings in 2009 and 2008 hatched in October and the 2010 hatchlings hatched in August. Since the 2010 hatchlings hatched in August, they got to eat more because if they hatched all in the same year, they would be older.

    Part 2
    The range for #2031’s hatchling weights is 26-96
    I do think that is a typical range because Yertle is 68 grams and Bowser is 70 grams. But #144 is an outlier because it is only 26 grams.
    #144 weighed 26 grams, #140 weighed 38 grams, and #141 weighed 96 grams. They are all outliers.
    The median weight is 67 grams.
    Compared to the median weight, Yertle and Bowser almost right in the middle. They are a bit on the heavier side though.
    I think that they will have an easier time in the wild than other turtles might,c including Nacho. Looking at some of the other turtles weights, they are pretty big and won’t have a hard time at all.

  16. PART 1
    a. I think that the Thoreau School Blanding’s Turtles are doing really well compared to the other schools, because there mean weight is 27 grams, Alcott’s mean weight is 23.833333 grams, Willard’s mean weight is 23.333333 grams, and the other places’ mean weight is 24.333333.
    b. The 2010 hatchlings are doing really well, their mean weight is 24.624999 grams, 2009’s mean weight is 15 grams and 2008’s mean weight is 17 grams. I think they weigh more now because they were born earlier, allowing them to eat more, so they weigh more.
    PART 2
    a. The range for mother 2031 baby’s (weight) is 26-96 grams.
    b. I do think that Yertle at 68 grams and Bowser at 70 grams are typical because the average weight of the turtles was about 65 and they are close to that weight.
    c. The outliers for these hatchlings are #144 that weighs 26 grams and #141 that weighs 96 grams.
    d. The median weight for these hatchlings is 67 grams.
    e. Yertle weighs 1 gram more and Bowser weighs 3 grams more.
    f. I think that some turtles eat more than others, so they weigh more.

  17. Part One
    1) I notice that the Thoreau hatchlings are always heavier than the others except in the 1st 30-60 days. It might be because the Thoreau hatchlings ate more so they weighed more.
    2) The ‘10 hatchlings are way heavier than the ‘09+’08 hatchlings by like, 10 grams. There might be heavier hatchlings because the mothers might be healthier that year so their babies might grow bigger or the food was eaten more or something.

    Part Two
    1) The range of the January weights for Turtle #2031′s hatchlings is from 26 grams to 96 grams.
    2) I think the range is typical because Yertle and Bowser are about in the middle of it.
    3) The outliers for these hatchlings are 26 & 96.
    4) The median weight for the hatchlings is 67 grams.
    5) Yertle is one gram higher than the median and Bowser is 3 grams.
    6) This batch will probably be big and strong and will be harder to fit in predator’s mouths.

  18. Part One

    A.I think they might be different because other turtles may have hatched at a different time or some might have eaten more than the others.

    B.I noticed that on the gragh the 2008 and 2009 hatchlings were close to each other and 2010 weights are more than the 2008 and 2009.Maybe it is because in 2010 schools got more experienced in taking care of them.

    Part Two

    A.The range of the January weights for turtle 2031’s hatchlings are 26-96 grams.

    B.I think that the weights are typical except that the hatchlings #140/#147 and #144.

    C.The outliers are 26 grams(#144),38 grams(#140) and 96 grams(#141).

    D.The median weight is 67 grams.

    E.The median weight is 67 grams so Yertle and Bowser’s weights are really close to the median weight.

    F.Being away from the predators and being looked after well,they have a much better chance of survival compared to the ones in the wild.

  19. a) The Thoreau hatchling’s are larger than other hatchlings that were head started in schools. I think it is because they feed them once a day and the people at Thoreau feed there turtles 3 times a day.

    b) All of the schools hatchlings are the same weights. The weight range of the schools are 30-40 grams. The 2009 and 2008 hatchlings weighted less than the schools turtles . The range is 20-30 grams. I think there is a change in weights because now there is more info on raising blandings turtle hatchlings.

    Part Two

    c) The range for turtle 2031’s hatchlings in January is 26- 96 grams.

    d) I think this range is typical because Bowser is at 78 grams and Yertle is at 68 grams that is right in the middle of mother 2031’s hatchlings range.

    e) The median for turtle 2031’s hatchlings in Janurary is 67 grams.

    f)They compare to Mother 2031’s hatchling’s very well because Yertle is 1 gram under the median and Bowser is 11 grams over the median weight.

    g) I think it might be because the zoo is feeding there turtles different foods.

  20. a.) The Thoreau turtles are mostly at the top of the graph. I think this because from data in the past they have eaten a lot more than the other schools. Also Dr. Windmiller told us that if they keep eating like they are they would be bigger than the other turtles when we release them into the wild.
    b.) I think that the turtle’s weights are different because they are being raised by different people; they eat at different times and so on. I think the main reason is because each turtle is different.
    PART TWO
    a.) The range for the data is 26-96.
    b.) I do not think that the range is typical because they are all the same age and the range is really big.
    c.) The outlier is 96.
    d.) The median is 67.
    e.) I think that Bowser and Yertle in are about the normal size.
    f.) I think that most of them will be healthy and some of them, not so much.

  21. Part 1A. Thoreau Blanding’s turtle hatchlings weighed more in grams than Alcott or Willard hatchlings each time they were measured. This is maybe because they were fed more.

    Part 1B. 2010 hatchlings weighed more than 2009 or 2008 hatchlings. This may be because we now know more about taking care of them.

    Part 2a. The range of the weights is 26 to 96 grams.
    Part 2b. I think the range is not typical.
    Part 2c. The outliers are 26 and 38 grams.
    Part 2d. The median weight is 67 grams.
    Part 2e. Yertle at 68 grams and Bowser at 70 grams are close to the median of 67 grams.
    Part 2f. The cause of the weights is how they were taken care of and where they were grown.

  22. Part1
    A) The Thoreau hatchlings weighed the most except for the fist 35 days. That’s probably because they got fed more.
    B) The 2010 turtles weigh more than the 2008 and 2009 turtles because they were born early so they had more time to eat.

    Part2
    A) The range is 26 grams to 96 grams.
    B) I don’t think the range is typical.
    C) The outliers are 26 and 96 grams.
    D) The median weight is 67 grams.
    E) Yertle and Bowser are probably the normal weight because the median is 67 grams and Yertle is at 68 and Bowser is at 70 grams they are very close.
    F) Because the turtles are so big now and they keep progressing this much, most things would probably be afraid of it once they’re released in the spring.

  23. 1) I think that the Thoreau school Blanding’s turtles weighted the most after the data began to vary and remained that way for the rest of the period’
    2) I think that the 2009 turtles weighed less than the 2008 turtles and the 2010 turtles weigh most of all. I think that the weights vary from year to year because the school has learned more about proper care.
    a) The range for turtle 2031s children is 26 to 96 grams. b) Yes, I do think that turtle 2031s children’s range is typical. Because Bowser and Yertles mother had some small turtles like Pancake and big ones like Bubbles. c) I think that the outliers for turtle 2031s children are 26, 53 and 96 .
    d) The median for turtle 2031s children is 69 grams.
    e) It is right in the middle of the two weights of Bowser and Yertles weight, which is 69 grams, just as much as they weigh.
    f) I think that the majority of turtle 2031 children were taken to the zoo, making their weight higher because they were fed a special diet and were cared for by veterinarians.

  24. A. I noticed that the Thoreau turtles are the heaviest for every age except one.
    B. I noticed that the 2010 data was somewhere near the top (around the 3rd to top) and on top once when the data for 2009 and 2008 were the lightest.

    A. The range of the January weights is 26-96.
    B. I think that the weights for Yertle and Bowser are typical of the other hatchlings.
    C. The outlier is 26.
    D. The median for the turtle weights is 67 grams.
    E. Bowser is more than the median weight of the turtles but Yertle is one gram less than the median of turtle weights.
    F. I think that the turtles are big because they ate more.

  25. A. I think that the Thoreau turtles are heavier then the other turtles because maybe this year at Thoreau we are feeding the turtles more.

    B. I noticed that the 2010 turtles have always been 10-15 grams heavier then the 2009 and 2008 turtles.

    PART 2

    A. The range of the #2031 turtles hatchlings weights are from 26-96 grams.

    B. These January weights are not at all typical.

    C. The outliers for these turtles I would say are 26 grams, 53 grams, 64 grams, and 96 grams.

    D. The median weight for these hatchlings is 67 grams.

    E. They are both very, very close to the median weight.

    F. Maybe because they have very good health.

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