Question: The Office of Personnel Management has been asked to evaluate

The Office of Personnel Management has been asked to evaluate the clerical exam that is used for the state of Washington. They have permission to run a quasi-experiment. One hundred persons are hired for clerical positions. They are also given the clerical exam but the exam scores are not used for hiring or placement. After the six-month probationary period, the supervisors of these persons are asked to recommend that the clerical worker be made a permanent hire or be terminated. This decision is the dependent variable. It is coded 1 if the person is hired and 0 if the person is terminated. The independent variable is the person’s score on the clerical exam. Scores can range from 0 to 100. A regression yields the following result:
Interpret the slope, intercept, and coefficient of determination. What can you say about the relationship between the exam and job performance? What is the probability that a person who scores 50 on the exam will be made a permanent employee? Place a 95% confidence limit around this estimate.

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  • CreatedNovember 11, 2015
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