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The IRS is interested in the number of individual tax forms prepared by small accounting firms. To investigate, they sampled 5 0 public accounting firms

The IRS is interested in the number of individual tax forms prepared by small accounting firms. To investigate, they sampled 50 public accounting firms with 10 or fewer employees in the Dallas-Fort Worth area. The following frequency table reports the results of the study. Assume the sample mean is 44.8 clients and the sample standard deviation is 9.37 clients. Is it reasonable to conclude that the sample data are from a population that follows a normal probability distribution?
\table[[Number of clients,Frequency],[20 up to 30,1],[30 up to 40,15],[40 up to 50,22],[50 up to 60,8],[60 up to 70,4]]
Click here for the Excel Data File
H0 : The population of clients follows a normal distribution.
H1 : The population of clients does not follow a normal distribution.
Required:
a. State the decision rule. Use the 0.05 significance level.
Note: Round your answer to 3 decimal places.
Reiect Hh if chi-square?
5.991
\table[[Reject H0 if chi-square >,
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