Sales of People magazine are compared over a 5-week period at four Borders outle

Question

Sales of People magazine are compared over a 5-week period at four Borders outlets in Chicago. Fill in the missing data. (Round your mean values to 1 decimal place and other answers to 2 decimal places.) Based on the given hypotheses, choose the correct option. H_0: sigma^2_1 = sigma^2_2 = sigma^2_3 = sigma^2_4; H_1: Not all the variances are equal at sigma = 0.05. Reject the null hypothesis if H 20.6 Calculate the value of H_calc. (Round your answer to 2 decimal places.) Should we reject the null hypothesis? Yes No

Explanation / Answer

Missing data:

Reject the null hypothesis if H > 20.6; option B

Hcalc = 0.82

No, we should not reject the null hypothesis. option B

Treatment Mean n Std Dev Variance Store 1 107.6 5 5.94 35.3 Store 2 87 5 11.11 123.5 Store 3 90.4 5 11.82 139.8 Store 4 100 5 9.14 83.5 Total 385 20 38.01 -

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