For the numerical questions below, express your answers in four decimal places.

Past experienceINDICATESthat monthly data use from mobiles is normally distributed with a mean of 1286 MB and a population standard deviation of 900 MB. After an advertising campaign aimed at showing the benefits of a new nationwide 4G network, the manager of a telecommunications firm took a random sample of 18 customers and recorded their montly usage. The manager found the sample average to be 1629.65 MB. The manager is looking to conduct a statistical test at the 1% level of significance to determine whether the campaign was successful.

A) What is the null hypothesis?

H0: 1286H0: > 1286H0: = 1629.65H0: 1629.65H0: 1286

B) What is the alternate hypothesis?

H1: > 1286H1: 1286H1: 1629.65H0: > 1629.65H0: > 1286

C) What is the value of ? Answer:

D) What is the value of the test statistic?

Answer:

E) What is the p-value? Answer: