The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.3 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.025. Complete parts (a) through (d) below. E Click on the icon to view the data. O A. Họ: a=2.3 minutes HA a<23 minutes OB. H: a<2.3 minutes HA: a=2.3 minutes OD. H: 0223 minutes OC. Họ: 0=23 minutes HA a2.3 minutes HA: a<2.3 minutes b. Compute the test statistic. (Round to two decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic isO (Round to three decimal places as needed.) d. Does the use of the single line appear to reduce the variation among waiting times There V sufficient evidence to conclude that the single line reduced the variation among waiting times because Ho is V by the hypothesis test.

The data table contains waiting times of customers at a bank, where customers enter a single waiting line that feeds three teller windows. Test the claim that the standard deviation of waiting times is less than 2.3 minutes, which is the standard deviation of waiting times at the same bank when separate waiting lines are used at each teller window. Use a significance level of 0.025. Complete parts (a) through (d) below. E Click on the icon to view the data. O A. Họ: a=2.3 minutes HA a<23 minutes OB. H: a<2.3 minutes HA: a=2.3 minutes OD. H: 0223 minutes OC. Họ: 0=23 minutes HA a2.3 minutes HA: a<2.3 minutes b. Compute the test statistic. (Round to two decimal places as needed.) c. Find the P-value of the test statistic. The P-value of the test statistic isO (Round to three decimal places as needed.) d. Does the use of the single line appear to reduce the variation among waiting times There V sufficient evidence to conclude that the single line reduced the variation among waiting times because Ho is V by the hypothesis test.

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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