Question

QUESTION 1

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

   Employee	1	2	3	4	5
   Age	28	22	35	28	27
   Gender	M	M	F	F	M

   Compute the point estimate for the standard deviation of the age of all employees.

5 points   

QUESTION 2

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

   Employee	1	2	3	4	5
   Age	32	34	35	28	27
   Gender	M	M	F	F	M

   Compute the point estimate for the average age of all employees.

5 points   

QUESTION 3

1. There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 25.9 years with a standard deviation of 5.1 years. A random sample of 36 students is selected.

   Compute the expected value of the sample mean.

5 points   

QUESTION 4

1. There are 904 students at the School of Management, UT Dallas. The average age of all the students is 24 years with a standard deviation of 24.3 years. A random sample of 63 students is selected.

   Compute the standard deviation of the sample mean.

Answer 1

1. The standard deviation of the age of all employees is 4.636

2. The average age of all the employees is 31.2

3. the expected value of the sample mean is 5.078

4. The standard deviation of the sample mean is 3.064