Suggests that abusive supervision is more prevalent in the retail industry than

Question

Suggests that abusive supervision is more prevalent in the retail industry than any other. To test this assumption, he collects data from n = 30 retail employees on the frequency of abusive supervision they have experienced over the past month on a scale from 1 (no experiences of abusive supervision) -7 (abused multiple times daily). If the level of abusive supervision in the population has a mean of mu = 4 (abused less than once a week) do the following data suggest that abusive supervision is significantly (alpha = .05) more prevalent in the retail industry than any other? what is the size of the effect (r^2), explain what this means about the impact of working in retail on being targeted with abusive supervision (think about your answer for #3).

Explanation / Answer

We used ratings as follows:

then assuming Normal distribution, used z-test for which p-value =0.019, so at 5% level we reject H0 and conclude that yes, there is significant the rating are significantly greater than 4.

Excel formula: =Z.TEST(A1:A30,4)

[Note: we can also use Non-parametric test i.e Wilcoxon test]

7 7 7 7 6 6 6 6 6 5 5 5 5 5 5 5 4 4 4 4 4 4 4 3 3 3 3 2 2 1

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