The data accompanying this exercise show miles per gallon (mpg) for 25 cars. a. State the null
Question:
The data accompanying this exercise show miles per gallon (mpg) for 25 cars.
a. State the null and the alternative hypotheses in order to test whether the variance differs from 62 mpg2.
b. Assuming that mpg is normally distributed, calculate the value of the test statistic.
c. Find 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 We find s 2 1144267 Given df n 1 25 ...View the full answer
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Related Book For
Business Statistics Communicating With Numbers
ISBN: 9781259957611
3rd Edition
Authors: Sanjiv Jaggia
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