Answer Happy

A car company says that the mean gas mileage for its luxury sedan is at least 25 miles per gallon (mpg). You believe the claim is incorrect and find that a random sample of 5 cars has a mean gas mileage of 24 mpg and a standard deviation of 4 mpg. At a = 0.10, test the company's claim. Assume the population is normally distributed. Click here to view the t-distribution table. Click here to view page 1 of the normal table. Click here to view page 2 of the normal table. What is the value of the standardized test statistic? The standardized test statistic is -0.56. (Round to two decimal places as needed.) What is the critical value? The critical value is -1.533. (Round to three decimal places as needed.) What is the outcome and the conclusion of this test? Ho. At the 10% significance level, there is sedan is at least 25 miles per gallon. evidence to the car company's claim that the mean gas mileage for the luxury