The following 20 sample data (in pounds), which were selected randomly from a normally distributed population of values, represent measurements of a machine part that is supposed to weigh, on average, 8.3 pounds. Use these data and alpha = 0.01 to test the hypothesis that the parts average 8.3 pounds. 8.1 | 8.4 8.3 8.2 8.5 8.6 | 8.4 8.3 8.4 | 8.2 | 8.8 | 8.2 8.2 8.3 8.1 8.3 | 8.4 8.5 8.5 | 8.7 The critical value is -2.8609 2.8609 ±2.8453 +2.5395 ±2.8609
The following 20 sample data (in pounds), which were selected randomly from a normally distributed population of values, represent measurements of a machine part that is supposed to weigh, on average, 8.3 pounds. Use these data and alpha = 0.01 to test the hypothesis that the parts average 8.3 pounds. 8.1 | 8.4 8.3 8.2 8.5 8.6 | 8.4 8.3 8.4 | 8.2 | 8.8 | 8.2 8.2 8.3 8.1 8.3 | 8.4 8.5 8.5 | 8.7 The critical value is -2.8609 2.8609 ±2.8453 +2.5395 ±2.8609
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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