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 u = 144 and J = 6.3. Find the probability that on a randomly selected day the humber of phone calls received is between 140 and 146. ?(140 < X < 146) = 18 days Find the probability that a random sample of n = has a mean number of phone calls recieved between 140 and 146. P(140 < M < 146) = 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.
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 u = 144 and J = 6.3. Find the probability that on a randomly selected day the humber of phone calls received is between 140 and 146. ?(140 < X < 146) = 18 days Find the probability that a random sample of n = has a mean number of phone calls recieved between 140 and 146. P(140 < M < 146) = 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.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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![**Apply the Central Limit Theorem for Sample Means**
A large call center outside a city tracks the number of phone calls received each day. The daily number of phone calls received is normally distributed with \( \mu = 144 \) and \( \sigma = 6.3 \).
Find the probability that on a randomly selected day the number of phone calls received is between 140 and 146.
\[ P(140 < X < 146) = \, \boxed{\phantom{Example Answer}} \]
Find the probability that a random sample of \( n = 18 \) days has a mean number of phone calls received between 140 and 146.
\[ P(140 < M < 146) = \, \boxed{\phantom{Example Answer}} \]
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.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5b06cc1a-670c-4da3-86c8-aa55d4f56c06%2F79c6e69c-2c25-478b-b8dd-fc358d7209dc%2Faroou9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Apply the Central Limit Theorem for Sample Means**
A large call center outside a city tracks the number of phone calls received each day. The daily number of phone calls received is normally distributed with \( \mu = 144 \) and \( \sigma = 6.3 \).
Find the probability that on a randomly selected day the number of phone calls received is between 140 and 146.
\[ P(140 < X < 146) = \, \boxed{\phantom{Example Answer}} \]
Find the probability that a random sample of \( n = 18 \) days has a mean number of phone calls received between 140 and 146.
\[ P(140 < M < 146) = \, \boxed{\phantom{Example Answer}} \]
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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