A random sample of 35 individuals in the waiting line for service by a bankofficer is selected.From the sample, we found that the mean waiting time was 22 minutes with astandard deviation of 8 minutes. The bank officer wants to estimate themean waiting time.0 Define the population parameter of interest in this problem.) Calculate the margin of error for a 90% confidence interval.i) Using a 90% confidence level, estimate the population mean waiting timefor all individuals waiting in the service line.Ans:i) (19.78, 24.22 minutes)

Given that n=35,x bar =22,s.d=8

Answered: A random sample of 35 individuals in…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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