1. Suppose you are testing the following hypothesis:

Ho: = 1,000 (the population mean is 1,000)

Ha: 1,000 (the population mean is not 1,000)

A random sample of size is 84 is taken from the target population. The sample mean is 975. The significance level is set at 0.05.

Should you reject the Ho?

2. Suppose you are testing the following hypothesis:

Ho: 4,000

Ha: < 4,000

A random sample of size is 16 is taken from the target population. The sample mean is 3,920 and the sample standard deviation is 200. The significance level is set at 0.01.

Assume that the values in the population are normally distributed.

Should you reject the Ho?