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For a sample of nine automobiles, the mileage (in 1000s of miles) at which the original front brake pads were worn to 10% of their original thickness was measured, as was the mileage at which the original rear brake pads were wom to 10% of their original thickness. The results are given in the following table. Automobile Rear 41.2 Front 32.8 2 26.6 35.2 3 35.6 46.1 4 36.4 46.0 5 29.2 39.9 40.9 51.7 40.9 51.6 34.8 46.1 36.6 47.3 Find a 95% confidence interval for the difference in mean lifetime between the front and rear brake pads.

For a sample of nine automobiles, the mileage (in 1000s of miles) at which the original front brake pads were worn to 10% of their original thickness was measured, as was the mileage at which the original rear brake pads were wom to 10% of their original thickness. The results are given in the following table. Automobile Rear 41.2 Front 32.8 2 26.6 35.2 3 35.6 46.1 4 36.4 46.0 5 29.2 39.9 40.9 51.7 40.9 51.6 34.8 46.1 36.6 47.3 Find a 95% confidence interval for the difference in mean lifetime between the front and rear brake pads.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 31PPS
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For a sample of nine automobiles, the mileage (in 1000s of miles) at which the original front brake pads were worn to 10% of their original thickness was measured, as was the mileage at which the original rear brake pads were wom to 10% of their original thickness. The results are given in the following table. Automobile Rear 41.2 Front 32.8 2 26.6 35.2 3 35.6 46.1 4 36.4 46.0 5 29.2 39.9 40.9 51.7 40.9 51.6 34.8 46.1 36.6 47.3 Find a 95% confidence interval for the difference in mean lifetime between the front and rear brake pads.
Transcribed Image Text:For a sample of nine automobiles, the mileage (in 1000s of miles) at which the original front brake pads were worn to 10% of their original thickness was measured, as was the mileage at which the original rear brake pads were wom to 10% of their original thickness. The results are given in the following table. Automobile Rear 41.2 Front 32.8 2 26.6 35.2 3 35.6 46.1 4 36.4 46.0 5 29.2 39.9 40.9 51.7 40.9 51.6 34.8 46.1 36.6 47.3 Find a 95% confidence interval for the difference in mean lifetime between the front and rear brake pads.
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