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Author Question: A carpet company advertises that it will deliver your carpet within 15 days of purchase. A sample of ... (Read 180 times)

acwiles

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on: Mar 25, 2023

A carpet company advertises that it will deliver your carpet within 15 days of purchase. A sample of 49 past customers is taken. The average delivery time in the sample was 16.2 days. The standard deviation of the population (σ) is known to be 5.6 days.

a.State the null and alternative hypotheses.
b.Using the critical value approach, test to determine if their advertisement is legitimate. Let α = .05.
c.Using the p-value approach, test the hypotheses at the 5% 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 acwiles on Mar 25, 2023

ludadtpb

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Reply #1 on: Mar 25, 2023
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acwiles

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Reply 2 on: Mar 25, 2023
Great answer, keep it coming :)

pratush dev

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

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