MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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You only need to answer the t-test. The other photo is for context. Thanks.
A sample of n = 11 U.S. males, age 18-24 years, are measured for height and weight. Let x denote
the height in inches, and let y denote the weight in pounds. The summary data are
Σ--761, Συ-1761 , Σα 52729, Σν-286273, Συ- 122234
From these we calculate Sra
81.636, Syy = 4352.9, Sey = 394.8
YY
(Use these values in this and the following questions.)
Find the regression line y =
= bo + b1x.
(Note: normally we would put a circumflex over the y: that is, "y-hat," but that notation is not
available in the standard math editor.)
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Transcribed Image Text:A sample of n = 11 U.S. males, age 18-24 years, are measured for height and weight. Let x denote the height in inches, and let y denote the weight in pounds. The summary data are Σ--761, Συ-1761 , Σα 52729, Σν-286273, Συ- 122234 From these we calculate Sra 81.636, Syy = 4352.9, Sey = 394.8 YY (Use these values in this and the following questions.) Find the regression line y = = bo + b1x. (Note: normally we would put a circumflex over the y: that is, "y-hat," but that notation is not available in the standard math editor.)
Finishing up with the data from question 6 above:
At the 5% level, are height and weight positively linearly correlated? Formulate and carry out the
appropriate t-test.
To get started, the null hypothesis is:
Ho. ρ- 0.
Include answers to the following:
a) a statement of the hypotheses
b) the critical value for the test
c) the value of the test statistic
d) a statement of conclusion
expand button
Transcribed Image Text:Finishing up with the data from question 6 above: At the 5% level, are height and weight positively linearly correlated? Formulate and carry out the appropriate t-test. To get started, the null hypothesis is: Ho. ρ- 0. Include answers to the following: a) a statement of the hypotheses b) the critical value for the test c) the value of the test statistic d) a statement of conclusion
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