TelecommutingAs an alternative to flextime, many companies allow employees to do some of their work at home. Individuals in a random sample of 300 workers were classified according to salary and number of workdays per week spent at home.
Workdays at Home per Week
Less
Than One
At Least One,
but Not All
All at Home
Salary
Under $25,000
38
16
14
$25,000 to $49,999
54
26
12
$50,000 to $74,999
35
22
9
Above $75,000
33
29
a. Do the data present sufficient evidence to indicate that salary is dependent on the number of workdays spent at home? Test using a = .05.
b. Use Table 5 in Appendix I to approximate the p-value for this test of hypothesis. Does the p-value confirm your conclusions from part a?
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