Q In the past the average age of employees of a large corpor

Q-

In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older individuals. In order to determine whether there has been an increase in the average age of all the employees, a sample of 64 employees was selected. The average age in the sample was 45 years. The population standard deviation was 16 years. Let a = .05.

The test was done but some data and items are missing

MINITAB OUTPUT:

Test of mu = A vs > A

The assumed standard deviation = 16

                    95% Lower

N   Mean SE Mean      Bound     Z      P

64 45.00     2.00 41.71     B C

WOLFRAM ALPHA OUTPUT:

1- Use your computers and then fill in the missing value

Solution

Using MINITAB to Fill the missing values.