According to a National Survey,the Average Commuting Time for People $\alpha$

Multiple Choice

According to a national survey,the average commuting time for people who commute to a city with a population of 1 to 3 million is 19.0 minutes.Suppose a researcher lives in a city with a population of 2.4 million and wants to test this claim in her city.Taking a random sample of 20 commuters she calculates a mean time of 19.346 minutes and a standard deviation of 2.842 minutes.What is the critical value for $\alpha$ = .10 to test the hypotheses.

A) 1.729
B) 1.725
C) 1.328
D) 1.325
E) 1.645