a. What is the probability that a sample of 50 male graduates will provide a sample mean within $.50 of the population mean, $21.68?
b. What is the probability that a sample of 50 female graduates will provide a sample mean within $.50 of the population mean, $18.80?
d. What is the probability that a sample of 120 female graduates will provide a sample mean more than $.30 below the population mean?
1 answer
Lacking data. Need to have some measure of variability to solve.
1 answer