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that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence interval to have an estimation of the mean value for all 5-min intervals.

that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence interval to have an estimation of the mean value for all 5-min intervals.

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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Question
Answer number 4
3. The following data are selected randomly from a population of normally distributed values. 40 51 43 48 44 57 43 54 41 39 42 48 45 39 Construct a 95% confidence interval to estimate the population mean. 4. To estimate the average number of customers entering and buying at the supermarket, the supervisor of that supermarket estimated the number of customers visiting every 5 minutes. She randomly selects 5-min intervals and counts the number of arrivals at the supermarket. The figures 58, 32, 41, 47, 56, 80, 45, 29, 32 and 78 were obtained and tallied. The analysts assume that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence interval to have an estimation of the mean value for all 5-min intervals.
Transcribed Image Text:3. The following data are selected randomly from a population of normally distributed values. 40 51 43 48 44 57 43 54 41 39 42 48 45 39 Construct a 95% confidence interval to estimate the population mean. 4. To estimate the average number of customers entering and buying at the supermarket, the supervisor of that supermarket estimated the number of customers visiting every 5 minutes. She randomly selects 5-min intervals and counts the number of arrivals at the supermarket. The figures 58, 32, 41, 47, 56, 80, 45, 29, 32 and 78 were obtained and tallied. The analysts assume that the number of arrivals is normally distributed. Based on these data, compute a 95% confidence interval to have an estimation of the mean value for all 5-min intervals.
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