QUESTION 1

A simple random sample of 5 employees of a corporation provided the following information.

Employee	1	2	3	4	5
Age	30	27	35	28	27
Gender	M	M	F	F	M

Computethe point estimate for the average age of all employees.

QUESTION 2

A simple random sample of 5 employees of a corporation provided the following information.

Employee	1	2	3	4	5
Age	23	27	35	28	27
Gender	M	M	F	F	M

Computethe point estimate for the standard deviation of the age ofall employees.

QUESTION 3

There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 23.6years with a standard deviation of 5.1 years. A random sample of 36 students is selected.

Compute the expected value of the sample mean.

QUESTION 4

There are 1,635 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard deviation of 3.6years. A random sample of 40 students is selected.

Compute the standard deviation of the sample mean.

QUESTION 5

There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard deviation of 4.37 years.

What is the smallest sample sizesuch that the standard deviation of the sample mean is0.42 years or less?(Enter an integer number.)