Chapter 3 Review Homework Question 14

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Chapter 3 Review Homework Question 14

Question

Chapter 3 Review Homework

14.  The mean of the commute time to work for a resident of a certain city is 27.3 minutes. Assume that the standard deviation of the commute time is 7.1 minutes to complete parts (a) through (c).

 

(a) What minimum percentage of commuters in the city has a commute time within 2 standard deviations of the mean?
 
b) What minimum percentage of commuters in the city has a commute time within 1.5 standard deviations of the mean? What are the commute times within 1.5standard deviations of the mean?

 
The minimum percentage of commuters in the city that has a commute time within 1.5 standard deviations of the mean is ____
 
The commute times within 1.5 standard deviations of the mean are between ____ and _____
 
(c) What is the minimum percentage of commuters who have commute times between 6 minutes and 48.6 minutes

 
 

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This question is taken from Math 227 – Statistics » Summer 2021 » Chapter 3 Review Homework