The Personnel office of a large company is doing a study to see if there is...
The Personnel office of a large company is doing a study to see if there is any correlation between grade point average in college-level business courses and success on the job. A random sample of 10 employees who had been on the job for one year was selected. Each employee was ranked by his or her supervisor with higher ranks meaning better job performance. Then the transcripts were examined and the employees were ranked by grade poing average in business courses, with higher ranks given to higher grade point averages. The results are given in the table.
| Employee | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| Job rank | 5 | 6 | 2 | 8 | 3 | 9 | 1 | 7 | 10 | 4 |
| Grade rank | 8 | 1 | 6 | 5 | 2 | 10 | 3 | 4 | 7 | 9 |
Use the 1% significance level to test the claim that there is a correlation between grade average and job performance.
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The Personnel office of a large company is doing a study to see
if there is...
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