2. Kim Chu kept careful records of the fuel efficiency of her boyfriend's Xian Lee car. After the first 200 times she filled up the tank, she found the mean was 25.6 miles per gallon (mpg) with a population standard deviation of 0.9 mpg. Compute the 95 percent confidence interval for his mpg Calculate the margin of error

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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2. Kim Chu kept careful records of the fuel efficiency of her boyfriend's Xian Lee
car. After the first 200 times she filled up the tank, she found the mean was 25.6
miles per gallon (mpg) with a population standard deviation of 0.9 mpg. Compute
the 95 percent confidence interval for his mpg
Calculate the margin of error
Transcribed Image Text:2. Kim Chu kept careful records of the fuel efficiency of her boyfriend's Xian Lee car. After the first 200 times she filled up the tank, she found the mean was 25.6 miles per gallon (mpg) with a population standard deviation of 0.9 mpg. Compute the 95 percent confidence interval for his mpg Calculate the margin of error
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