For an audience of 600 people attending a concert, the average time on the journey to the concert was 32 minutes, and the standard deviation was 10 minutes. A random sample of 150 audience members was taken. a. What is the probability that the sample mean journey time was more than 31 minutes? b. What is the probability that the sample mean journey time was less than 33 minutes? c. Construct a graph to illustrate why the answers to parts (a) and (b) are the same. d. What is the probability that the sample mean journey time was not between 31 and 33 minutes?
For an audience of 600 people attending a concert, the average time on the journey to the concert was 32 minutes, and the standard deviation was 10 minutes. A random sample of 150 audience members was taken. a. What is the probability that the sample mean journey time was more than 31 minutes? b. What is the probability that the sample mean journey time was less than 33 minutes? c. Construct a graph to illustrate why the answers to parts (a) and (b) are the same. d. What is the probability that the sample mean journey time was not between 31 and 33 minutes?
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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For an audience of 600 people attending a concert, the average time on the journey to the concert was 32 minutes, and the standard deviation was 10 minutes. A random sample of 150 audience members was taken.
a. What is the
b. What is the probability that the sample mean journey time was less than 33 minutes?
c. Construct a graph to illustrate why the answers to parts (a) and (b) are the same.
d. What is the probability that the sample mean journey time was not between 31 and 33 minutes?
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