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f. Do the records suggest a relationship or independence between age and department for the employees of this car dealership at the 5% significance level? Give reason(s) for your answer.

f. Do the records suggest a relationship or independence between age and department for the employees of this car dealership at the 5% significance level? Give reason(s) for your answer.

MATLAB: An Introduction with Applications
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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Question

 

SALES

D1

ACCOUNTS

D2

MARKETING

D3

REPAIRS

D4

TOTAL

20-29

8

17.74

10

20.44

27

26.20

43

23.62

88

 

30-39

29

23.18

26

26.72

38

34.24

22

30.86

115

40-49

33

44.15

32

50.88

72

65.20

82

58.77

219

50-59

81

65.92

106

75.97

86

97.36

54

87.75

327

TOTAL

151

174

223

201

749

 

The human resource manager at a car dealership wants to know if the ages of its employees are related to the department that they work in. Data was compiled and tabulated in a 2-way contingency table. The employees were classified according to their age and department.

 

f. Do the records suggest a relationship or independence between age and department for the employees of this car dealership at the 5% significance level? Give reason(s) for your answer.

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