Pay your bills: In a large sample of customer accounts, a utility company determined that the average number of days between when a bill was sent out and when the payment was made is 31 with a standard deviation of 6 days. Assume the data to be approximately bell-shaped. 1. Between what two values will approximately 95% of the numbers of days be? 2. What is the percentage of customer accounts for which the number of days is between 25 and 37? 3. What is the percentage of customer accounts for which the number of days is between 13 and 49?
Pay your bills: In a large sample of customer accounts, a utility company determined that the average number of days between when a bill was sent out and when the payment was made is 31 with a standard deviation of 6 days. Assume the data to be approximately bell-shaped. 1. Between what two values will approximately 95% of the numbers of days be? 2. What is the percentage of customer accounts for which the number of days is between 25 and 37? 3. What is the percentage of customer accounts for which the number of days is between 13 and 49?
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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Pay your bills: In a large sample of customer accounts, a utility company determined that the average number of days between when a bill was sent out and when the payment was made is 31 with a standard deviation of 6 days. Assume the data to be approximately bell-shaped.
1. Between what two values will approximately 95% of the numbers of days be?
2. What is the percentage of customer accounts for which the number of days is between 25 and 37?
3. What is the percentage of customer accounts for which the number of days is between 13 and 49?
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