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Homework answers / question archive / In a meeting, Matt estimates the average miles per gallon (MPG) of the fleet cars is 41 mpg
In a meeting, Matt estimates the average miles per gallon (MPG) of the fleet cars is 41 mpg. With a certain level of confidence, he announces the actual mpg is in the 40 to 48 mpg range. What is the margin of error?
Lower confidence interval = 40
Upper confidence interval = 48
Sample Mean = (40+48)/2
Sample Mean = 44
Margin of error = 48-44
Margin of error = 4 mpg
