A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability the sample mean is:

a. Less than 74.

b. Between 74 and 76.

c. Between 76 and 77.

d. Greater than 77

A normal population has a mean of 75 and a standard deviation of 5. You select a sample of 40. Compute the probability the sample mean is:

a. Less than 74.

b. Between 74 and 76.

c. Between 76 and 77.

d. Greater than 77