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The waiting time to get food at a fast-food restaurant is 4.7 minutes on average with standard deviation of 2.5 munutes. Suppose that a sample of 32 customers is randomly selected. A. What are the mean and standard deviation of the sample mean waiting time of 32 customers? Mean = Standard Deviation (standard error of the mean) minutes minutes Round standard error to 5 decimal places. B. What is the probability that the average waiting time of 32 customers is less than 4.4 minutes? Round to 4 decimal places. C. What is the probability that the average waiting time of 32 customers is greater than 4.8 minutes? Round to 4 decimal places. D. What is the probability that the average waiting time of 32 customers is between 4.4 and 4.8 minutes? Answer: Answer:

The waiting time to get food at a fast-food restaurant is 4.7 minutes on average with standard deviation of 2.5 munutes. Suppose that a sample of 32 customers is randomly selected. A. What are the mean and standard deviation of the sample mean waiting time of 32 customers? Mean = Standard Deviation (standard error of the mean) minutes minutes Round standard error to 5 decimal places. B. What is the probability that the average waiting time of 32 customers is less than 4.4 minutes? Round to 4 decimal places. C. What is the probability that the average waiting time of 32 customers is greater than 4.8 minutes? Round to 4 decimal places. D. What is the probability that the average waiting time of 32 customers is between 4.4 and 4.8 minutes? Answer: Answer:

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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The waiting time to get food at a fast-food restaurant is 4.7 minutes on average with a standard deviation of 2.5 minutes. Suppose that a sample of 32 customers is randomly selected. A. What are the mean and standard deviation of the sample mean waiting time of 32 customers? Mean = ____ minutes Standard Deviation (standard error of the mean) = ____ minutes Round standard error to 5 decimal places. B. What is the probability that the average waiting time of 32 customers is less than 4.4 minutes? Answer: ____ Round to 4 decimal places. C. What is the probability that the average waiting time of 32 customers is greater than 4.8 minutes? Answer: ____ Round to 4 decimal places. D. What is the probability that the average waiting time of 32 customers is between 4.4 and 4.8 minutes? Answer: ____ Round to 4 decimal places.
Transcribed Image Text:The waiting time to get food at a fast-food restaurant is 4.7 minutes on average with a standard deviation of 2.5 minutes. Suppose that a sample of 32 customers is randomly selected. A. What are the mean and standard deviation of the sample mean waiting time of 32 customers? Mean = ____ minutes Standard Deviation (standard error of the mean) = ____ minutes Round standard error to 5 decimal places. B. What is the probability that the average waiting time of 32 customers is less than 4.4 minutes? Answer: ____ Round to 4 decimal places. C. What is the probability that the average waiting time of 32 customers is greater than 4.8 minutes? Answer: ____ Round to 4 decimal places. D. What is the probability that the average waiting time of 32 customers is between 4.4 and 4.8 minutes? Answer: ____ Round to 4 decimal places.
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