Truck dealer claims where a new model will give trouble free

Reference no: EM1316419

To find the alternate hypotheses and critical value?

A truck dealer claims that a new model will give trouble free service for at least 15,000 miles - Data below shows a sample of the # of miles of trouble free service for the dealer\'s pickups that were sold a couple of years ago. Test the dealer\'s claim at a 2.5% level of significance.

16,000
15,000
14,350
14,500
13,750
13,000
14,250
13,900

a. What is the alternative hypothesis
b. What is the test statistic
c. What is the critical value?
d. Does the evidence support the claim?

Reference no: EM1316419

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