Question

Employers often use standardized measures to gauge how Ikely it is that a new employee with little to no experience will succeed in their company. One such factor is intelligence, measured using the intelligence Quotient (10). To show that this factor is related to job, an organizational puychologist measures the 10 score and job performance (in units sold per day) in a sample of 10 new employees. 100 15 115 35 21 108 98 18 120 41 147 53 44 132 85 56 105 22 110 38 (a) Convert the following data to ranks and then compute a Spearman correlation coefficient, (Round your answer to three decimal places.) (b) Using a two-tailed test at a 0.05 level of significance, state the decision to retain or reject the null hypothesis Retain the null hypothesis. Reject the null hypothesis You may need to use the appropriate table in Appendix to answer this question Additional Materials Book

Answer 1

d X 100 Y 15 xrank 3 y rank 1 2 4 4 115 108 35 21 7 5 Сол 2 2 3 4 98 120 18 41 2 8 2 7 0 1 0 1 1 147 132 53 44 10 9 9 8 1 1 1 85 105 110 56 22 1 4 10 4 -9 0 81 0 38 6 6 0 0 Ed? 2 96

a)

Spearman correlation coefficient =rs=1-6Σd2/(n(n2-1))=

0.418

b)

retain the null hypothesis