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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 X7= 3.51 S1 = 0.51 Company 2 n2 = 355 X2= 3.24 %3D S2 = 0.52 Test the hypothesis that the customer satisfactions about the two companies are same at the level of significance 0.05.

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 X7= 3.51 S1 = 0.51 Company 2 n2 = 355 X2= 3.24 %3D S2 = 0.52 Test the hypothesis that the customer satisfactions about the two companies are same at the level of significance 0.05.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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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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