Question
Spectrum Cable company wants to estimate its mean waiting time for installation of service to within a 4-day margin of error with 90% confidence. The
Spectrum Cable company wants to estimate its mean waiting time for installation of service to within a 4-day margin of error with 90% confidence. The company believes that the population standard deviation is 20 days. What sample size is needed?
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Social And Economic Networks
Authors: Matthew O Jackson
1st Edition
140083399X, 9781400833993
