Test of hypothesis-testing gas mileage claims

Reference no: EM13110586

Chrysler Corporation agrees to allow you to randomly select 40 of its new Dodge Caravans to test the highway mileage. Chrysler claims that the caravans get 28mpg on the highway. Your results show a mean of 26.7 and a standard deviation of 4.2. You support Chrysler's claim.

1. Show why you support Chrysler's claim by listing the p-value from your output. Test the variability of the miles per gallon on the highway. from futher questioning of Chrysler's quality control engineers, you find they are claiming a standard deviation of 2.1

2. Test the claim about standard deviation

3. What action should Chrysler take to remedy complaints.

Reference no: EM13110586

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