Question

Use this sample to compute a Point estimate and 95% confidence interval for the mean age of employees.

Point Estimate :		(Use 3 decimals)
Confidence Interval
Margin of Error		(Use 3 decimals)
Lower Limit :		(Use 3 decimals)
Upper Limit :		(Use 3 decimals)

Employee Number1	Annual Salary	Gender	Age (years)	Experience (years)	Training Level
1	$     32,368	F	42	3	B
2	$     53,174	M	54	10	B
3	$     52,722	M	47	10	A
4	$     53,423	M	47	1	B
5	$     50,602	M	44	5	B
6	$     49,033	M	42	10	A
7	$     24,395	M	30	5	A
8	$     24,395	F	52	6	A
9	$     43,124	M	48	8	A
10	$     23,975	F	58	4	A
11	$     53,174	M	46	4	C
12	$     58,515	M	36	8	C
13	$     56,294	M	49	10	B
14	$     49,033	F	55	10	B
15	$     44,884	M	41	1	A
16	$     53,429	F	52	5	B
17	$     46,574	M	57	8	A
18	$     58,968	F	61	10	B
19	$     53,174	M	50	5	A
20	$     53,627	M	47	10	B
21	$     49,033	M	54	5	B
22	$     54,981	M	47	7	A
23	$     62,530	M	50	10	B
24	$     27,525	F	38	3	A
25	$     24,395	M	31	5	A
26	$     56,884	M	47	10	A
27	$     52,111	M	56	5	A
28	$     44,183	F	38	5	B
29	$     24,967	F	55	6	A
30	$     35,423	F	47	4	A
31	$     41,188	F	35	2	B
32	$     27,525	F	35	3	A
33	$     35,018	M	39	1	A
34	$     44,183	M	41	2	A
35	$     35,423	M	44	1	A
36	$     49,033	M	53	8	A
37	$     40,741	M	47	2	A
38	$     49,033	M	42	10	A
39	$     56,294	F	44	6	C
40	$     47,180	F	45	5	C
41	$     46,574	M	56	8	A
42	$     52,722	M	38	8	C
43	$     51,237	M	58	2	B
44	$     53,627	M	52	8	A
45	$     53,174	M	54	10	A
46	$     56,294	M	49	10	B
47	$     49,033	F	53	10	B
48	$     49,033	M	43	9	A
49	$     55,549	M	35	8	C
50	$     51,237	M	56	1	C
51	$     35,200	F	38	1	B
52	$     50,175	F	42	5	A
53	$     24,352	F	35	1	A
54	$     27,525	F	40	3	A
55	$     29,606	F	34	4	B
56	$     24,352	F	35	1	A
57	$     47,180	F	45	5	B
58	$     49,033	M	54	10	A
59	$     53,174	M	47	10	A
60	$     53,429	F	45	7	B
61	$     53,627	M	47	10	A
62	$     26,491	F	46	7	A
63	$     42,961	M	36	3	B
64	$     53,174	M	45	5	A
65	$     36,292	M	46	0	A
66	$     37,292	M	47	1	A
67	$     41,188	F	34	3	B
68	$     57,242	F	45	7	C
69	$     53,429	F	44	6	C
70	$     53,174	M	50	10	B
71	$     44,138	F	38	2	B

Answer 1