John Isaac Inc. Case


John Isaac Inc., a designer and installer of industrial signs, employs 60 people. The company recorded the type of the most recent visit to a doctor by each employee. A national assessment conducted in 2014 found that 53% of all physician visits were to primary care physicians, 19% to medical specialists, 17% to surgical specialists and 11% to emergency departments. Test at the 0.01 significance level if Isaac employees differ significantly from the survey distribution. Here are their results:

Visit Type Number of Visits
Primary care 29
Medical specialist 11
Surgical specialist 16
Emergency 4
State the decision rule. Use 0.01 significance level. (Round your answer to 3 decimal places.)
H0: The employee visits do not differ from the survey distribution..
H1: The employee visits differ from the survey distribution.
Reject H0 if formula106.mml2 >________
Compute the value of chi-square. (Round your answer to 2 decimal places.)
1formula23.mml2 = ________
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