15 - The amount of time required to reach a customer service representative has a huge impact on customer satisfaction.Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of timerequired to reach a customer service representative between two hotels. Assume that the population variances inthe amount of time for the two hotels are not equal.What assumptions are necessary for testing if there is evidence of a difference in the variabilities of the amount oftime required to reach a customer service representative between the two hotels to be valid?t-Test: Two-Sample Assuming Unequal VariancesHotel 1Hotel 2Mean2.2142.01153.57855VarianceObservationsHypothesized Mean Differencedft StatP(T<=t) one-tailt Critical one-tailP(T<=t) two-tailt Critical two-tail2.9516572020380.3543860.3625041.6859530.7250092.024394(1) Both sampled populations are normally distributed.b) O Neither (1) nor (2) is necessary.a)c)(2) Both samples are random and independent.d) O Both (1) and (2) are necessary.Ror birak

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Description: 15 - The amount of time required to reach a customer service representative has a huge impact on customer satisfaction.Below is the Excel output from a study to see whether there is evidence of a difference in the mean amounts of timerequired to rea

The assumptions required for carrying out a two sample t-test (For equal and unequal variances) is…

Math

Statistics

are not equal. nptions are necessary for testing if there is evidence of a difference in the ed to reach a customer service representative between the two hotels to be Sample Assuming Unequal Variances Hotel 1 Hotel 2 2.0115 2.214 2.951657 20 3.57855 ns ced Mean Difference 20 38 0.354386 0.362504 e-tail

are not equal. nptions are necessary for testing if there is evidence of a difference in the ed to reach a customer service representative between the two hotels to be Sample Assuming Unequal Variances Hotel 1 Hotel 2 2.0115 2.214 2.951657 20 3.57855 ns ced Mean Difference 20 38 0.354386 0.362504 e-tail

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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