will 1. The Department of Motor Vehicles receives complaints about customers having to wait too long...
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will 1. The Department of Motor Vehicles receives complaints about customers having to wait too long at their offices. They collect data and find the average wait time is 35 minutes with a standard deviation of 10 minutes. Assume that wait times are Normally distributed. a) Find the probability that a randomly selected customer has to wait less than 30 minutes. b) Now take an SRS of 40 DMV customers. What is the mean and standard deviation of the waist time of the sample of 40 customers? e) Find the probability that an SRS of 40 customers has a mean weight time less than 30 minutes. will 1. The Department of Motor Vehicles receives complaints about customers having to wait too long at their offices. They collect data and find the average wait time is 35 minutes with a standard deviation of 10 minutes. Assume that wait times are Normally distributed. a) Find the probability that a randomly selected customer has to wait less than 30 minutes. b) Now take an SRS of 40 DMV customers. What is the mean and standard deviation of the waist time of the sample of 40 customers? e) Find the probability that an SRS of 40 customers has a mean weight time less than 30 minutes.
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Let X be a waiting time random variable A The following are the population mean u and population sta... View the full answer
Related Book For
Operations management processes and supply chain
ISBN: 978-0136065760
9th edition
Authors: Lee J Krajewski, Larry P Ritzman, Manoj K Malhotra
Posted Date:
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