A machine shop that manufactures toggle levers has both a day and a night shift. A toggle lever is defective if a standard nut cannot be screwed onto the threads. Let Pi and p2 be the proportion of defective levers among those manufactured by the day and night shifts, respectively. A two random samples, each of 1000 levers yield to x1 = and x2 = 37 53 defectives levers for the day and night shifts, respectively. Is there enough evidence to claim a difference between pi and p2? Use a = = 0.05 Null hypothesis: Alternate hypothesis: Test Statistic: Rejection region: P-value: Conclusion:

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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A machine shop that manufactures toggle levers has both a day and a night shift. A
toggle lever is defective if a standard nut cannot be screwed onto the threads. Let pi
and p2 be the proportion of defective levers among those manufactured by the day and
= 37
night shifts, respectively. A two random samples, each of 1000 levers yield to x1
53 defectives levers for the day and night shifts, respectively. Is there enough
and x2
evidence to claim a difference between pi and p2? Use a =
= 0.05
Null hypothesis:
Alternate hypothesis:
Test Statistic:
Rejection region:
P-value:
Conclusion:
Transcribed Image Text:A machine shop that manufactures toggle levers has both a day and a night shift. A toggle lever is defective if a standard nut cannot be screwed onto the threads. Let pi and p2 be the proportion of defective levers among those manufactured by the day and = 37 night shifts, respectively. A two random samples, each of 1000 levers yield to x1 53 defectives levers for the day and night shifts, respectively. Is there enough and x2 evidence to claim a difference between pi and p2? Use a = = 0.05 Null hypothesis: Alternate hypothesis: Test Statistic: Rejection region: P-value: Conclusion:
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