When 100 randomly selected car owners are surveyed,it is found that the mean length of time they plan to keep their car is 7.01 years,and the population standard deviation is 3.74 years.Calculate the p-value for the test statistic used to test the claim that the mean years for all car owners is less than 7.5 years,and determine whether the null hypothesis can be rejected at α = .05.

Question

Quizplus · Accepted Answer

The Answer of When 100 randomly selected car owners are surveyed,it is found that the mean length of time they plan to keep their car is 7.01 years,and the population standard deviation is 3.74 years.Calculate the p-value for the test statistic used to test the claim that the mean years for all car owners is less than 7.5 years,and determine whether the null hypothesis can be rejected at α = .05.

When 100 Randomly Selected Car Owners Are Surveyed,it Is Found