**Waiting Times Analysis at Two Different Banks**The data below displays the waiting times (in minutes) of customers at two different banks:- **Bank A** has a single waiting line that feeds three teller windows.- **Bank B** allows customers to enter any one of three different lines that have formed at three teller windows.### Waiting Times Data- **Bank A:** 6.4, 6.6, 6.7, 6.8, 7.1, 7.3, 7.4, 7.9, 7.9- **Bank B:** 4.2, 5.3, 5.8, 6.2, 6.8, 7.6, 7.6, 7.6, 8.5, 9.3, 10.0### Analysis Task1. **Objective:** Construct a 90% confidence interval for the population standard deviation (σ) at Bank A.2. **Reference:** Consult the table of Chi-Square critical values for calculations.### Instructions- Calculate the 90% confidence interval for σ at Bank A, rounding to two decimal places as needed.- Use the provided checkboxes to input the minimum and maximum values of the confidence interval.This exercise aims to help students understand and apply statistical methods to real-world scenarios, enhancing their ability to analyze and interpret data systematically.

For Bank A, the given sample observations of waiting times are given as:6.4, 6.6, 6.7, 6.8, 7.1,…

Answered: The values listed below are waiting…

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 values listed below are waiting times (in minutes) of customers at two different banks. At Bank A, customers enter a single waiting line that feeds three teller windows. At Bank B, customers may enter any one of three different lines that have formed at three teller windows. Answer the following questions. 7.1 6.7 5.8 7.8 10.0 Bank A 6.5 4.2 6.6 5.4 6.8 6.2 7.2 Bank B 7.5 7.6 7.8 8.4 7.8 9.4 6.7 7.6 Click the icon to view the table of Chi-Square critical values. Construct a 90% confidence interval for the population standard deviation o at Bank A. min < ogank Amin (Round to two decimal places as needed.)
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