11) ACME Steel Inc. produces metal rods. The mean length of all rods produced is 2.5 feet with a population standard deviation of 0.4 feet. However, Quality Control believes that some of their equipment is faulty and is actually producing rods with a mean length of less than 2.5 feet. They test their claim at a 1% significance level by sampling 50 rods and find: Determine: Ho H x = 2.35 feet A p-value p = Decision: Reject H OR Do not reject H 0 0 Conclusion:

11) ACME Steel Inc. produces metal rods. The mean length of all rods produced is 2.5 feet with a population standard deviation of 0.4 feet. However, Quality Control believes that some of their equipment is faulty and is actually producing rods with a mean length of less than 2.5 feet. They test their claim at a 1% significance level by sampling 50 rods and find: Determine: Ho H x = 2.35 feet A p-value p = Decision: Reject H OR Do not reject H 0 0 Conclusion:

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 13PPS

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