One of the customer service department received the following number of calls during peak time over 12 time periods: 50, 49, 63, 54, 72, 76, 59, 66, 83, 64, 78, 61 It is known that the standard deviation of the number of calls during peak time is 16. Estimate the mean number of calls over peak time with a 98% confidence level.
One of the customer service department received the following number of calls during peak time over 12 time periods: 50, 49, 63, 54, 72, 76, 59, 66, 83, 64, 78, 61 It is known that the standard deviation of the number of calls during peak time is 16. Estimate the mean number of calls over peak time with a 98% confidence level.
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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Transcribed Image Text:One of the customer service department received the following number of calls during
peak time over 12 time periods:
50, 49, 63, 54, 72, 76, 59, 66, 83, 64, 78, 61
It is known that the standard deviation of the number of calls during peak time is 16. Estimate the
mean number of calls over peak time with a 98% confidence level.
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