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Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the nul hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 98% level of confidence to support the claim that the mean wait time is longer than 4.50 minutes.

Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the nul hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 98% level of confidence to support the claim that the mean wait time is longer than 4.50 minutes.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 4.50 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 53 randomly selected calls. The mean wait time was calculated to be 4.94 minutes. Assuming the population standard deviation is 2.10 minutes, is there sufficient evidence to say that the mean wait time for customers is longer than 4.50 minutes with a 98 % level of confidence? Step 3 of 3: Draw a conclusion and interpret the decision. 囲 Tables E Keypad Answer Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. Submit Answer © 2021 Hawkes Learning 68°F Clear here to search Sre sc home delete Tum & backsp Ace s lock %23 %24 7. 3 NE R T Y enter 0) pause alt ctrl USE YOUR SMARTPH Reviews Videns Specs-Sun
Transcribed Image Text:The board of a major credit card company requires that the mean wait time for customers when they call customer service is at most 4.50 minutes. To make sure that the mean wait time is not exceeding the requirement, an assistant manager tracks the wait times of 53 randomly selected calls. The mean wait time was calculated to be 4.94 minutes. Assuming the population standard deviation is 2.10 minutes, is there sufficient evidence to say that the mean wait time for customers is longer than 4.50 minutes with a 98 % level of confidence? Step 3 of 3: Draw a conclusion and interpret the decision. 囲 Tables E Keypad Answer Keyboard Shortcuts We reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is insufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. We fail to reject the null hypothesis and conclude that there is sufficient evidence at a 98 % level of confidence to support the claim that the mean wait time is longer than 4.50 minutes. Submit Answer © 2021 Hawkes Learning 68°F Clear here to search Sre sc home delete Tum & backsp Ace s lock %23 %24 7. 3 NE R T Y enter 0) pause alt ctrl USE YOUR SMARTPH Reviews Videns Specs-Sun
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