utsourcing Company and Technica Global Services has better ustomer service, an independent survey group gathered data on he length of time (in minutes) a customer has to wait on hold efore someone answers the phone when calling the customer care otline for assistance. The data is summarized below. tatistics Primacom Outsourcing Company Technica Global Services Mean 8.14 9.426 tandard Deviation 1.345 1.813 ample Size 7 7 there a significant difference between the average lengths of me customers are on hold for the two companies? Use a 5% level of gnificance. Assume that the lengths of time on hold are normally istributed with unknown but equal population variances. . Perform a complete test of hypothesis. . Select here the conclusion for this test of hypothesis. O There is a significant difference between the average lengths of time customers are on hold for the two companies. O There is no significant difference between the average lengths of time customers are on hold for the two companies.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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In an effort to determine which company between Primacom
Outsourcing Company and Technica Global Services has better
customer service, an independent survey group gathered data on
the length of time (in minutes) a customer has to wait on hold
before someone answers the phone when calling the customer care
hotline for assistance. The data is summarized below.
Statistics
Primacom Outsourcing Company Technica Global Services
Mean
8.14
9.426
Standard Deviation
1.345
1.813
Sample Size
7
7
Is there a significant difference between the average lengths of
time customers are on hold for the two companies? Use a 5% level of
significance. Assume that the lengths of time on hold are normally
distributed with unknown but equal population variances.
A. Perform a complete test of hypothesis.
B. Select here the conclusion for this test of hypothesis.
There is a significant difference between the average lengths of time customers are on hold for the two
companies.
There is no significant difference between the average lengths of time customers are on hold for the two
companies.
Transcribed Image Text:In an effort to determine which company between Primacom Outsourcing Company and Technica Global Services has better customer service, an independent survey group gathered data on the length of time (in minutes) a customer has to wait on hold before someone answers the phone when calling the customer care hotline for assistance. The data is summarized below. Statistics Primacom Outsourcing Company Technica Global Services Mean 8.14 9.426 Standard Deviation 1.345 1.813 Sample Size 7 7 Is there a significant difference between the average lengths of time customers are on hold for the two companies? Use a 5% level of significance. Assume that the lengths of time on hold are normally distributed with unknown but equal population variances. A. Perform a complete test of hypothesis. B. Select here the conclusion for this test of hypothesis. There is a significant difference between the average lengths of time customers are on hold for the two companies. There is no significant difference between the average lengths of time customers are on hold for the two companies.
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