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Q5. To compare the customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 1 n, = 174 X= 3.51 S1 = 0.51 Company 2 n2 = 355 Xz= 3.24 Sz = 0.52 Test the hypothesis that the customer satisfactions about the two companies are same at the level of significance 0.05.

Q5. To compare the customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 1 n, = 174 X= 3.51 S1 = 0.51 Company 2 n2 = 355 Xz= 3.24 Sz = 0.52 Test the hypothesis that the customer satisfactions about the two companies are same at the level of significance 0.05.

A First Course in Probability (10th Edition)
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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Q5. To compare the customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 2 n2 = 355 Xz= 3.24 S2 = 0.52 Test the hypothesis that the customer satisfactions about the two companies are Company 1 n1 = 174 X = 3.51 S = 0.51 %3D same at the level of significance 0.05. Q6. Entry and exit for a hypermarket is via one of four gates. The number of customers entering and leaving the hypermarket is counted at each gate for a week time is given in the following table. Gate Number of Customers Use Chi-square test for goodness of fit, test the hypothesis that the number of customers using each of the four gates are equal at a = 0.05. Gate 1 Gate 2 Gate 3 Gate 4 327 402 351 380
Transcribed Image Text:Q5. To compare the customer satisfaction levels of two competing companies, 174 customers of company 1 and 355 customers of company 2 were randomly selected and were asked to rate the companies as a five point scale. The survey results are summarized in the following table. Company 2 n2 = 355 Xz= 3.24 S2 = 0.52 Test the hypothesis that the customer satisfactions about the two companies are Company 1 n1 = 174 X = 3.51 S = 0.51 %3D same at the level of significance 0.05. Q6. Entry and exit for a hypermarket is via one of four gates. The number of customers entering and leaving the hypermarket is counted at each gate for a week time is given in the following table. Gate Number of Customers Use Chi-square test for goodness of fit, test the hypothesis that the number of customers using each of the four gates are equal at a = 0.05. Gate 1 Gate 2 Gate 3 Gate 4 327 402 351 380
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