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Author Question: Nancy believes that the average running time of movies is equal to 140 minutes. A sample of 4 movies ... (Read 20 times)

krabuske

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on: Mar 25, 2023

Nancy believes that the average running time of movies is equal to 140 minutes. A sample of 4 movies was taken and the following running times were obtained. Assume the population of the running times is normally distributed.

150150180170


a.Compute the sample mean and the standard deviation.
b.State the null and alternative hypotheses.
c.Using the critical value approach, test the hypotheses at the 10% level of significance.
d.Using the p-value approach, test the hypotheses at the 10% level of significance.

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by krabuske on Mar 25, 2023

bainer89

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Reply #1 on: Mar 25, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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krabuske

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Reply 2 on: Mar 25, 2023
:D TYSM

kalskdjl1212

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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