*6. The sales manager of a large educational software company compares two training programs offered by competing...

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*6. The sales manager of a large educational software company compares two training programs offered by competing firms. She forms eight matched pairs of sales trainees on the basis of their verbal aptitude scores obtained at the time of initial employment; she randomly assigns one member of each pair to program 1 and the other to program 2. The following are the results for the two groups after six months on the job (sales in thousands of dollars):

(a) Compute sX1X2

.

(b) Specify the statistical hypotheses.

(c) Perform the test (a ΒΌ :01).

(d) Draw final conclusions.

(e) Do you believe that the magnitude of this particular rpre,post is sufficient? (Explain.)

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Fundamentals Of Statistical Reasoning In Education

ISBN: 9780470574799

3rd Edition

Authors: Theodore Coladarci, Casey D. Cobb, Edward W. Minium, Robert C. Clarke

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