A study was carried out to compare mean customer satisfaction scores at servicecenters in city A, in city B, and in city C. The sample means on a scale of 0 to 10were 8.4 in city A, 8.6 in city B, and 7.9 in city C. Each sample size = 100, MSerror = 0.41, and the F test statistic= 27.4 has P-value <0.001. Complete parts athrough d.a. What is the margin of error for separate 95% confidence intervals? (For df = 297,¹.025 = 1.968.)...margin of error = 0.18 (Round to two decimal places as needed.)b. Find the 95% confidence interval for the difference in population means for eachpair of service centers. Interpret.Find the 95% confidence interval for the difference in population means between cityA and city B.The 95% confidence interval for HA-HBis (D).(Round to two decimal places as needed. Use ascending order.)NOV10tvClear allCheck answerNIA

The mean square error is 0.41, the degrees of freedom is 297 and the critical value is 1.968.

Answered: Find the 95% confidence interval for…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

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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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Find the 95% confidence interval for the difference in population means between city A and city B. The 95% confidence interval for HA-HB is 0. (Round to two decimal places as needed. Use ascending order.)