Suppose that the number of Facebook friends users have is normally distributed with a mean of 135 and a standard deviation of about 49. Assume fourteen individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ?- N( b. For the group of 14, find the probability that the average number of friends is more than 146. c. Find the third quartile for the average number of Facebook friends. Round to 2 decimal places. d. For part b), is the assumption that the distribution is normal necessary? O Yes No Question Help: Written Example Message instructor Submit Question Jump to Answer.
Suppose that the number of Facebook friends users have is normally distributed with a mean of 135 and a standard deviation of about 49. Assume fourteen individuals are randomly chosen. Answer the following questions. Round all answers to 4 decimal places where possible. a. What is the distribution of ?- N( b. For the group of 14, find the probability that the average number of friends is more than 146. c. Find the third quartile for the average number of Facebook friends. Round to 2 decimal places. d. For part b), is the assumption that the distribution is normal necessary? O Yes No Question Help: Written Example Message instructor Submit Question Jump to Answer.
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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Transcribed Image Text:Suppose that the number of Facebook friends users have is normally distributed with a mean of 135 and a
standard deviation of about 49. Assume fourteen individuals are randomly chosen. Answer the following
questions. Round all answers to 4 decimal places where possible.
a. What is the distribution of ?- N(
b. For the group of 14, find the probability that the average number of friends is more than 146.
c. Find the third quartile for the average number of Facebook friends. Round to 2 decimal places.
d. For part b), is the assumption that the distribution is normal necessary? O Yes No
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