1. Because the whole population did not respond to the survey, the CEO would like a 95% confidence interval about the mean performance rating of the employees.

2. The CEO is concerned that employees who have been at the company for a long time are earning higher performance reviews possibly based on longevity and not on performance. From the sample, the CEO would like to know the probability of earning a performance rating higher than 6 A. From the entire sample B. Given that one male employee was randomly chosen from the population C. Given that one female employee was randomly chosen from the population D. Given that the employee had worked for the company for 10 years or more E. Discuss whether or not the data indicate a need for further investigation.

Levine, D. M., Szabat, K. A., & Stephan, D. (2020). Business statistics: A first course. Pearson.

ABC Company Data	This is a sample from the population.		Enough of the population replied to a survey such that the sample size is sufficient.
Member	Sex	Age	Performance rating (10 is the highest)	Years with the company	New Accounts Brought in
A	F	24	4	2	3
B	F	59	7	22	6
C	F	61	7	30	6
D	M	55	10	4	31
E	M	29	6	5	5
F	M	33	6	5	5
G	M	37	6	1	4
H	M	26	2	1	0
I	M	33	9	7	7
J	F	45	8	17	7
K	M	55	8	12	9
L	M	27	6	4	5
M	F	33	5	8	3
N	F	54	5	2	6
O	M	47	9	20	2
P	M	41	5	22	1
Q	F	50	8	16	7
R	F	52	9	15	8