"A sample of 5 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively.

"A sample of 5 retirees is drawn at random from a normal population whose mean age and standard deviation are 75 and 6 years, respectively. A) Find the mean and standard error of the sampling distribution of the sample mean. B) What is the probability that the mean age exceeds 73 years?"