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Recently, a pizza place was receiving complaints about erratic pizza delivery times. To address this issue, the owners made some operational changes in its restaurant and added more delivery people to its staff. To study these changes, the owners would like to test the hypothesis that the standard deviation for the delivery times of its pizza is less than 18 minutes. The data shown to the right represent a random sample of delivery times (in minutes). Complete parts a and b. 30 37 13 31 41 35 34 18 22 41 15 10 12 22 11 a. Using a 0.05, test whether or not the pizza place's goal was achieved. Identify the null and alternative hypotheses. Ho: 02 H₁:02 (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is ☐. (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is (are)

Recently, a pizza place was receiving complaints about erratic pizza delivery times. To address this issue, the owners made some operational changes in its restaurant and added more delivery people to its staff. To study these changes, the owners would like to test the hypothesis that the standard deviation for the delivery times of its pizza is less than 18 minutes. The data shown to the right represent a random sample of delivery times (in minutes). Complete parts a and b. 30 37 13 31 41 35 34 18 22 41 15 10 12 22 11 a. Using a 0.05, test whether or not the pizza place's goal was achieved. Identify the null and alternative hypotheses. Ho: 02 H₁:02 (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is ☐. (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is (are)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Recently, a pizza place was receiving complaints about erratic pizza delivery times. To address this issue, the owners made some operational changes in its restaurant and added more delivery people to its staff. To study these changes, the owners would like to test the hypothesis that the standard deviation for the delivery times of its pizza is less than 18 minutes. The data shown to the right represent a random sample of delivery times (in minutes). Complete parts a and b. 30 37 13 31 41 35 34 18 22 41 15 10 12 22 11 a. Using a 0.05, test whether or not the pizza place's goal was achieved. Identify the null and alternative hypotheses. Ho: 02 H₁:02 (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is ☐. (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is (are)
Transcribed Image Text:Recently, a pizza place was receiving complaints about erratic pizza delivery times. To address this issue, the owners made some operational changes in its restaurant and added more delivery people to its staff. To study these changes, the owners would like to test the hypothesis that the standard deviation for the delivery times of its pizza is less than 18 minutes. The data shown to the right represent a random sample of delivery times (in minutes). Complete parts a and b. 30 37 13 31 41 35 34 18 22 41 15 10 12 22 11 a. Using a 0.05, test whether or not the pizza place's goal was achieved. Identify the null and alternative hypotheses. Ho: 02 H₁:02 (Type integers or decimals.) Calculate the appropriate test statistic. The test statistic is ☐. (Round to two decimal places as needed.) Determine the appropriate critical value(s). The critical value(s) is (are)
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