(Answered) According to an online survey by harris interactive for job

Statistics

According to an online survey by Harris Interactive for job site CareerBuilder.com (lnformationWeek.com, September 27, 2007), more than half of IT workers say they have fallen asleep at work. Sixty-four percent of government workers admitted to falling asleep on the job. Assume that the following contingency table is representative of the survey results.

1683_representative of the survey results.png

a. Specify the competing hypotheses to determine whether sleeping on the job is associated with job category.

b. Compute the value of the test statistic.

c. Approximate the p -value.

d. At the 5% significance level, can you conclude that sleeping on the job depends on job category?

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