Problem 2 A factory manager wishes to know whether the efficiency of employees working in a high-noise area could be improved by reducing the noise level. The following table gives efficiency rating taken before and after noise-reduction measures were introduced for 15 affected employees. Can we conclude from these data, at the 0.01 level of significance, the reducing the noise level raises the efficiency level of employees? A higher number indicates a higher efficiency. Efficiency Rating Efficiency Rating Employee Before After Employee Before After 1 21 32 9 22 40 35 35 10 35 48 40 58 11 28 38 4 38 57 12 20 33 23 37 13 39 39 6. 27 40 14 28 41 7 28 39 15 34 44 8 38 58 2.
Problem 2 A factory manager wishes to know whether the efficiency of employees working in a high-noise area could be improved by reducing the noise level. The following table gives efficiency rating taken before and after noise-reduction measures were introduced for 15 affected employees. Can we conclude from these data, at the 0.01 level of significance, the reducing the noise level raises the efficiency level of employees? A higher number indicates a higher efficiency. Efficiency Rating Efficiency Rating Employee Before After Employee Before After 1 21 32 9 22 40 35 35 10 35 48 40 58 11 28 38 4 38 57 12 20 33 23 37 13 39 39 6. 27 40 14 28 41 7 28 39 15 34 44 8 38 58 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:Problem 2
A factory manager wishes to know whether the efficiency of employees working in a high-noise area
could be improved by reducing the noise level. The following table gives efficiency rating taken
before and after noise-reduction measures were introduced for 15 affected employees. Can we
conclude from these data, at the 0.01 level of significance, the reducing the noise level raises the
efficiency level of employees? A higher number indicates a higher efficiency.
Efficiency Rating
Efficiency Rating
Employee
Before
After
Employee
Before
After
1
21
32
22
40
2
35
35
10
35
48
3
40
58
11
28
38
4
38
57
12
20
33
5
23
37
13
39
39
27
40
14
28
41
7
28
39
15
34
44
8
38
58
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