A large call center outside a city tracks the number of phone calls recieved each day. The daily number of phone calls recieved is normally distributed with μ=151and σ=6.8. Find the probability that on a randomly selected day the number of phone calls received is between 150 and 155. P(150 < X < 155) =  Find the probability that a random sample of n=25 days has a mean number of phone calls recieved between 150 and 155. P(150 < M < 155) =  Enter your answers as numbers accurate to 3 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter9: Solving Quadratic Functions
Section: Chapter Questions
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A large call center outside a city tracks the number of phone calls recieved each day. The daily number of phone calls recieved is normally distributed with μ=151and σ=6.8.

Find the probability that on a randomly selected day the number of phone calls received is between 150 and 155.

P(150 < X < 155) = 

Find the probability that a random sample of n=25 days has a mean number of phone calls recieved between 150 and 155.

P(150 < M < 155) = 

Enter your answers as numbers accurate to 3 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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