SCM_200_HW5_Template_Revised - 549 SCM200 Homework 5...

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SCM 200 Introduction to Statistics for Business Spring 2008 Homework Assignment #5 Confidence Intervals Name: _______________Ben Hollenbach ________________ Problem 1 Time to Prepare Bid Sample Mean 12.68 St. Dev. 4.74 Confidence Interval Lower Limit Upper Limit 90% 10.69 14.68 95% 10.37 14.997 99% 9.69 15.67 Proportion of Jobs Won Sample Proportion 10/25 or 40% Confidence Interval 90% 95% 99% N Required for ± 10% 138 N Required for ± 5%
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Unformatted text preview: 549 SCM200 Homework 5 Problem 2 Statistics Call Center 1 Mean 10.41 Standard Deviation 11.41 90% Confidence Interval Call Center 1 Call Center 2 Comments From this information one can conclude that Call center 2 will most likely have a longer average call time because both the lower and higher limits are greater than those of Call center 1. 04:54:13 Page 2...
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This note was uploaded on 04/15/2008 for the course SCM 200 taught by Professor Kumarsanjay during the Spring '08 term at Pennsylvania State University, University Park.

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SCM_200_HW5_Template_Revised - 549 SCM200 Homework 5...

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