14.3 A group of 28 salespersons were rated on their sales presentations and then asked to view...

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14.3 A group of 28 salespersons were rated on their sales presentations and then asked to view a training film on improving selling techniques.

Each person was then rated a second time. For the data below determine whether the training film has a positive effect on the ratings.

Rating after Film Acceptable Not Acceptable Total Acceptable 5 4 9 Not acceptable 13 6 19 Total 18 10 28

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Nonparametric Statistical Inference

ISBN: 9781420077612

5th Edition

Authors: Jean Dickinson Gibbons, Subhabrata Chakraborti

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