Question

You run a small trucking company that transports goods from Bristol, TN to Winslow, AZ. This trip should take 32 hours and 16 minutes (1936 minutes) if done in accordance with safety regulations. However, you believe that your employees have not been following these rules, because they are completing the trip too quickly. You decide to test your hypothesis. You record the time it takes for your employees to make the trip and record the following results. Use Z-statistic/distribution.

x̅= 1736 minutes s = 635 n = 46

A) State your null and alternative hypotheses

B) Carry out the test with α = 0.05, and state your conclusion

C) Carry out the test with α = 0.01, and state your conclusion

D) Does your conclusion change with the change in α?

Answer 1