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?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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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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