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# Statistics: null hypothesis / goodness-of-fit test

Question a: A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek. The null hypothesis to be tested is: Absenteeism is distributed evenly throughout the week. The 0.01 level is to be used. The sample results are:

SEE ATTACHED DATA.

What kind of frequencies are the numbers 12, 9, 11, 10, and 9 called?

a. Acceptance
b. Critical value
c. Expected
d. Observed

Question b: What is our decision for a goodness-of-fit test with a computed value of chi-square of 1.273 and a critical value of 13.388?

a. Do not reject the null hypothesis
b. Reject the null hypothesis
c. Unable to reject or not reject the null hypothesis based on data
d. Should take a larger sample

#### Solution Preview

Question a: A personnel manager is concerned about absenteeism. She decides to sample the records to determine if absenteeism is distributed evenly throughout the six-day workweek. The null ...

#### Solution Summary

Null hypothesis and goodness-of-fit tests are examined.

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