You compare the height and weight of 5 adult women. You get the following results: height 60 67 62 70 66 weight 119 143 131 155 136 (a) Construct a scatter plot of height (x) vs. weight (y) (b) Calculate the following (show your work for SScp): SSx SSy SScp ̄x ̄y (c) Calculate the correlation coefficient (r)   Only answer question 2   2) Use the information from problem 1. Perform a complete test of the hypothesis that the population correlation coefficient (ρ) is 0. Show all steps (note - obviously this should be a one sided test! Make sure you know why!).

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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1) You compare the height and weight of 5 adult women. You get the following results:

height 60 67 62 70 66
weight 119 143 131 155 136
(a) Construct a scatter plot of height (x) vs. weight (y) (b) Calculate the following (show your work for SScp):

SSx SSy SScp ̄x ̄y
(c) Calculate the correlation coefficient (r)

 

Only answer question 2

 

2) Use the information from problem 1. Perform a complete test of the hypothesis that the population correlation coefficient (ρ) is 0. Show all steps (note - obviously this should be a one sided test! Make sure you know why!).

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