The data accompanying this exercise show miles per gallon (mpg) for 25 cars. a. State the null
Question:
a. State the null and the alternative hypotheses in order to test whether the variance differs from 62 mpg2.
b. Assuming that mpg are normally distributed, calculate the value of the test statistic.
c. Use Excel's function (CHISQ.DIST.RT or CHISQ.DIST) to calculate the p-value.
d. Make a conclusion at α = 0.01.
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a H 0 2 62mpg 2 H A 2 62mpg 2 b Using Excel we find s 2 11443 Given df n 1 25 1 24 the ...View the full answer
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Related Book For 
Business Statistics Communicating With Numbers
ISBN: 9780078020551
2nd Edition
Authors: Sanjiv Jaggia, Alison Kelly
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