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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?
Choose the right answer:

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?

Choose the right answer:
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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