TABLE 11-4. One criterionused to evaluate employees in the assembly section of a
ID: 2954978 • Letter: T
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TABLE 11-4. One criterionused to evaluate employees in the assembly section of a largefactory is the number of defective pieces per 1,000 parts produced.The quality control department wants to find out whether there is arelationship between years of experience and defect rate. Since thejob is repetitious, after the initial training period anyimprovement due to a learning effect might be offset by a loss ofmotivation. A defect rate is calculated for each worker in a yearlyevaluation. The results for 100 workers are given in the tablebelow.
Referring to Table 11-4,which test would be used to properly analyze the data in thisexperiment to determine whether there is a relationship betweendefect rate and years of experience?
TABLE 11-4. One criterionused to evaluate employees in the assembly section of a largefactory is the number of defective pieces per 1,000 parts produced.The quality control department wants to find out whether there is arelationship between years of experience and defect rate. Since thejob is repetitious, after the initial training period anyimprovement due to a learning effect might be offset by a loss ofmotivation. A defect rate is calculated for each worker in a yearlyevaluation. The results for 100 workers are given in the tablebelow.
Referring to Table 11-4,which test would be used to properly analyze the data in thisexperiment to determine whether there is a relationship betweendefect rate and years of experience?
X^2 test forindependence X^2 test fordifferences between two proportions (independentsamples) X^2 test fordifferences between two proportions (related samples) X^2 test fordifferences among more than two proportions
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