1. Walt times for actual people to answer a phone call from a certain company followed a normal distribution. The mean w

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1. Walt times for actual people to answer a phone call from a certain company followed a normal distribution. The mean w

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1 Walt Times For Actual People To Answer A Phone Call From A Certain Company Followed A Normal Distribution The Mean W 1
1 Walt Times For Actual People To Answer A Phone Call From A Certain Company Followed A Normal Distribution The Mean W 1 (35.01 KiB) Viewed 23 times
1. Walt times for actual people to answer a phone call from a certain company followed a normal distribution. The mean wait time was 15 minutes with a standard deviation of twelve minutes. a. What is the probability that a person waited more than 20 minutes? I b. What is the probability that a person's wait time is between 12 minutes and 18 minutes ? c. Find the 95 percentile wait time for this distribution d. If a sample of 48 people were taken, what is the probability that the average time to wait is less than 17 minutes?
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