Measure your height and wingspan in inches using a measuring
tape. Report it in the class discussion
board.
Heights (x) Wingspan (y)
63 65
72 73
63.5 61
72 68
64.5 64.25
64 66
62 63
55 57
69 70
72 73
63 64
69 68
64.25 64.75
65 67
63 64
64 65
71.25 74.5
68 70
65 62
70 72
64 61
64.5 63
58 55
63 62
69.25 70.75
64 69.5
71.75 73.5
69 71
71 74
Test the Claim
Test the claim that height and wingspan are positively correlated
at the α = 0.05 significance level. Then,
answer the question, is the height of a person useful in predicting
the wingspan of a person?
1. Write the null and alternative hypotheses.
2. What type of tailed test is this?
3. Place the data into L1 and L2 in your calculator. Describe which
statistical test you used. What is
the test statistic, p-value, and the linear correlation
coefficient? (Round to four decimal places.)
t = _________________________
p-value = ____________________
r = ________________________
4. Find the regression line equation. (Round to four decimal
places.) Fill in...
^y =¿+¿¿
5. Make a decision about the null hypothesis. We
__________________________ the null
hypothesis because
_________________________________________________.
6. Write a conclusion. There ____________ enough evidence to
conclude that
_____________________ is useful in predicting
____________________________.
Prediction Questions
1. Based on the regression equation, predict the wingspan of a
person with a height of 64.5
inches. Show your work. Round to one decimal place.
Measure your height and wingspan in inches using a measuring tape. Report it in the class discussion board. Heights (x)
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answerhappygod
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Measure your height and wingspan in inches using a measuring tape. Report it in the class discussion board. Heights (x)
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