Question
A MANUFACTURER CLAIMS THAT ITS CARS CONSUME AN AVERAGE 5.50 GALLONS EVERY 100 KILOMETERS. A COMPANY SELLER CHECKS THE GASOLINE CONSUMPTION OF 35 CARS AND
A MANUFACTURER CLAIMS THAT ITS CARS CONSUME AN AVERAGE 5.50 GALLONS EVERY 100 KILOMETERS. A COMPANY SELLER CHECKS THE GASOLINE CONSUMPTION OF 35 CARS AND FINDS THAT THE AVERAGE CONSUMPTION OF THAT GROUP IS 5.65 GALLONS EVERY 100 KILOMETERS WITH A STANDARD DEVIATION OF 0.35 GALLONS. WITH THESE DATA, CAN YOU DOUBT ABOUT WHAT IS SUPPORTED BY THE COMPANY (1% LEVEL)?
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From Calculus To Analysis
Authors: Steen Pedersen
1st Edition
3319136410, 9783319136417
