Example 2 A machine is set to produce bolts with a mean length of 1.00 inches. Bolts that are consistently either too long or too short will not meet specifications. Suppose n=50 bolts are sampled and the average length is 1.003 inches, with a standard deviation of 0.01 inches. Is there sufficient evidence at the 5% level to conclude that the machine is producing bolts which do not meet specifications?

Example 2 A machine is set to produce bolts with a mean length of 1.00 inches. Bolts that are consistently either too long or too short will not meet specifications. Suppose n=50 bolts are sampled and the average length is 1.003 inches, with a standard deviation of 0.01 inches. Is there sufficient evidence at the 5% level to conclude that the machine is producing bolts which do not meet specifications?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.4: Collecting Data

Problem 3E

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