PLEASE HELP SOLVE AND EXPLAIN. THANKS. A simple random sample of 8 employees of

Question

PLEASE HELP SOLVE AND EXPLAIN. THANKS.

A simple random sample of 8 employees of a large corporation provided the following information.

Employee            1              2              3              4              5              6              7              8

Age                        25           32           26           40           50           54           22           23

Gender                 M            M            M            M            F              M            M            F

a.            Determine the point estimate for the average age of all employees.

b.            What is the point estimate for the standard deviation of the age of all employees?

c.             Determine the point estimate for the proportion of all employees who are female.

d.            What is the point estimate of the standard deviation of the proportion of all employees who are females?

Explanation / Answer

A) From the given data point estimate for the average age of all employees is 34 (sum of all ages / 8)

B) point estimate for the std. dev. of the age of all employees 12.5698

C) Point estimate for the porportion of all employees who are female, p = 2/8 = 0.25

D) Std. dev. = sqrt(0.25*0.75/8) = 0.1531

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