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An industrial engineer would like to determine whether there are more units produced on the night shift than on the day shift. Assume the population standard deviation for the number of units produced on the day shift is 21 and is 28 on the night shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345. A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger? Note: Use day shift as first sample. The test type and the decision and the conclusion case are respectively : Select one: a.Left tail, do not reject HO , night shift larger b.Right tail, do not reject HO, night shift larger. c.Left tail, do not reject H0, night shift not larger d.Left tail, reject HO, night shift not larger e. Right tail, reject HO, night shift larger.

An industrial engineer would like to determine whether there are more units produced on the night shift than on the day shift. Assume the population standard deviation for the number of units produced on the day shift is 21 and is 28 on the night shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345. A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger? Note: Use day shift as first sample. The test type and the decision and the conclusion case are respectively : Select one: a.Left tail, do not reject HO , night shift larger b.Right tail, do not reject HO, night shift larger. c.Left tail, do not reject H0, night shift not larger d.Left tail, reject HO, night shift not larger e. Right tail, reject HO, night shift larger.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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An industrial engineer would like to determine whether there are more units produced on the night shift than on the day shift. Assume the population standard deviation for the number of units produced on the day shift is 21 and is 28 on the night shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345. A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger? Note: Use day shift as first sample. The test type and the decision and the conclusion case are respectively : Select one: a.Left tail, do not reject HO, night shift larger b.Right tail, do not reject HO, night shift larger. c.Left tail, do not reject HO, night shift not larger d.Left tail, reject H0, night shift not larger O e. Right tail, reject HO, night shift larger.
Transcribed Image Text:An industrial engineer would like to determine whether there are more units produced on the night shift than on the day shift. Assume the population standard deviation for the number of units produced on the day shift is 21 and is 28 on the night shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345. A sample of 60 night-shift workers showed that the mean number of units produced was 351. At the .05 significance level, is the number of units produced on the night shift larger? Note: Use day shift as first sample. The test type and the decision and the conclusion case are respectively : Select one: a.Left tail, do not reject HO, night shift larger b.Right tail, do not reject HO, night shift larger. c.Left tail, do not reject HO, night shift not larger d.Left tail, reject H0, night shift not larger O e. Right tail, reject HO, night shift larger.
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