The marketing director of a large department store in Metro Manila wants to estimate the average number ofcustomers who enter the store every five minutes. She randomly selects five-minute intervals and counts thenumber of arrivals at the store. She obtains the figures: 58, 32, 41, 47, 56, 80.Find the mean of this sample [Select]Find the standard deviation of this sample [Select]Give the t-value for a 95% confidence coefficient, assuming a normal distribution.[ Select]Give a 95% confidence interval for the number of arrivals. [Select]Suppose the computed 95% confidence interval is (34, 68), which of the below interpretation is correct.[Select]>

here as per guidelines i have calculated 3 subparts here given , xi : 58 ,32 , 41 , 47, 56 , 80…

Answered: Find the mean of this sample [Select]…

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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Find the mean of this sample [Select] Find the standard deviation of this sample [Select] Give the t-value for a 95% confidence coefficient, assuming a normal distribution. [Select] Give a 95% confidence interval for the number of arrivals. [Select]