The contents of a random sample of 10 lubricant containers were recorded as follows: 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9, 10.4, 10.3, and 9.8 liters. Assuming the distribution of the contents to be normal, is there a reason to believe that the true mean content of all lubricant containers is less than 11 liters?

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 14PPS
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The contents of a random sample of 10 lubricant containers were recorded as follows: 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9, 10.4, 10.3, and 9.8 liters. Assuming the distribution of the contents to be normal, is there a reason to believe that the true mean content of all lubricant containers is less than 11 liters?

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