Question

Congress regulates corporate fuel economy and sets an annual gas mileage for cars. A company with a large fleet of cars hopes to meet the goal of 30.4 mpg or better for their fleet of cars. To see if the goal is being​met, they check the gasoline usage for 46 company trips chosen at ​random, finding a mean of 31.4 mpg and a standard deviation of 2.57 mpg. Is this strong evidence that they have attained their fuel economy​ goal? Use 0.05 as the​ level of significance. p-Value = 0.006. State an appropriate conclusion. Choose the correct answer below. Fail to reject the null hypothesis. There is not strong evidence that the company is meeting their goal. Reject the null hypothesis. There is not strong evidence that the company is meeting their goal. Reject Reject the null hypothesis. There is strong evidence that the company is meeting their goal. Fail to reject the null hypothesis. There is strong evidence that the company is meeting their goal

Answer 1

Solution :

Given that,

P-value = 0.006

$\alpha$ = 0.05

P-value < $\alpha$

Reject the null hypothesis .

There is strong evidence that the company is meeting their goal .