In a Study of Distances Traveled by Buses Before the First

Multiple Choice

In a study of distances traveled by buses before the first major engine failure,a sample of 191 buses results in a mean of 96,700 miles and a standard deviation of 37,500 miles.Calculate the appropriate test statistic to test the claim that the mean distance traveled before a major engine failure is more than 90,000 miles.

A) 2.47
B) 34.13
C) 478.16
D) -34.13
E) -2.47