Call centers typically have high turnover. The director of human resources for a large bank has compiled data on about 70 former employees at one of the bank's call centers. The accompanying table shows this data. In writing an article about call center working conditions, a reporter has claimed that the average tenure is no more than two years. Formulate and test a hypothesis using these data to determine if this claim can be disputed. Use a level of significance of 0.05. E Click the icon to view the call center data Is there suficient evidence at the 0.05 level of significance that the average tenure is no more than two years? Determine the null hypothesis, Hg, and the altemative hypothesis, H,. H H, (Type whole numbers.) Compute the test statistic O(Round to two decimal places as needed.) Find the p-value for the test O(Round to three decimal places as needed.) State the conclusion The p-value is V the chosen value of a so V the null hypothesis. There is evidence to conclude that mean is greater than 2.
Call centers typically have high turnover. The director of human resources for a large bank has compiled data on about 70 former employees at one of the bank's call centers. The accompanying table shows this data. In writing an article about call center working conditions, a reporter has claimed that the average tenure is no more than two years. Formulate and test a hypothesis using these data to determine if this claim can be disputed. Use a level of significance of 0.05. E Click the icon to view the call center data Is there suficient evidence at the 0.05 level of significance that the average tenure is no more than two years? Determine the null hypothesis, Hg, and the altemative hypothesis, H,. H H, (Type whole numbers.) Compute the test statistic O(Round to two decimal places as needed.) Find the p-value for the test O(Round to three decimal places as needed.) State the conclusion The p-value is V the chosen value of a so V the null hypothesis. There is evidence to conclude that mean is greater than 2.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Call centers typically have high turnover. The director of human resources for a large bank has compiled data on about 70 former employees at one of the bank's call centers. The accompanying table shows this data. In writing an article about call center working conditions, a reporter has claimed that the average tenure is no
more than two years. Formulate and test a hypothesis using these data to determine if this claim can be disputed. Use a level of significance of 0.05.
E Click the icon to view the call center data
Is there sufficient evidence at the 0.05 level of significance that the average tenure is no more than two years?
Determine the null hypothesis, H,, and the alternative hypothesis, H,.
Ho
H,:
(Type whole numbers.)
Compute the test statistic.
O(Round to two decimal places as needed.)
Find the p-value for the test.
O(Round to three decimal places as needed.)
State the conclusion.
The p-value is
V the chosen value of a, so
V the null hypothesis. There is
V evidence to conclude that mean is greater than 2.
Transcribed Image Text:Row
Gender
Length of years
var3
1
7.03
2
1
3.46
3
2.06
4
1.79
5
4.42
6
3.29
7
3.04
8
1
0.47
1
0.59
10
1
3.12
11
2.95
12
2.16
13
4.04
14
1
3.54
15
1
2.46
16
2.15
17
1
3.26
18
1
1.09
19
1
1.79
20
1.94
21
2.91
22
3.01
23
2.53
24
1.84
25
1
2.89
26
1
2.19
27
1
1.43
28
1
2.54
29
1
1.42
30
1
1.09
31
0.98
32
1
0.62
33
1
1.29
34
1
2.13
35
2.29
36
2.05
37
2.13
38
1
2.12
39
1
2.17
40
1
2.03
41
1.69
42
2.11
43
1
1.74
44
2.15
45
1
2.11
46
1
0.35
47
1.94
48
1.02
49
1.26
50
1.04
51
1.62
52
1
1.74
53
1
1.71
54
1.29
55
1.46
56
1.32
57
1
1.44
58
1
1.87
59
1
1.16
60
1.17
61
1.04
62
1
0.96
63
1.24
64
0.81
65
1
0.85
66
0.99
67
0.76
68
0.32
69
0.35
70
0.56
71
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