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2. A large firm collects sample data on the lengths of telephone calls (in minutes) made by employees in two different divisions, and the results are as follows. Sales Division Customer Service Division ni= 40 n2=20 Mean=10.26 Mean=6.93 Sı=8.65 S2=4.93 At 0.05 level of significance, test the claim that there is no difference between the mean times of all long-distance calls made in the two divisions. Assume that the population variances are equal.

2. A large firm collects sample data on the lengths of telephone calls (in minutes) made by employees in two different divisions, and the results are as follows. Sales Division Customer Service Division ni= 40 n2=20 Mean=10.26 Mean=6.93 Sı=8.65 S2=4.93 At 0.05 level of significance, test the claim that there is no difference between the mean times of all long-distance calls made in the two divisions. Assume that the population variances are equal.

MATLAB: An Introduction with Applications
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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2. A large firm collects sample data on the lengths of telephone calls (in minutes) made by employees in two different divisions, and the results are as follows. Sales Division Customer Service Division ni= 40 n2=20 Mean=10.26 Mean=6.93 Sı=8.65 S2=4.93 At 0.05 level of significance, test the claim that there is no difference between the mean times of all long-distance calls made in the two divisions. Assume that the population variances are equal.
Transcribed Image Text:2. A large firm collects sample data on the lengths of telephone calls (in minutes) made by employees in two different divisions, and the results are as follows. Sales Division Customer Service Division ni= 40 n2=20 Mean=10.26 Mean=6.93 Sı=8.65 S2=4.93 At 0.05 level of significance, test the claim that there is no difference between the mean times of all long-distance calls made in the two divisions. Assume that the population variances are equal.
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