24. Clark Heter is an industrial engineer at Lyons Products.?
Friday, February 5th, 2010 at
2:38 pm
He would like to determine whether there are more units produced on the afternoon shift than on the day shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345, with a standard deviation of 21. A sample of 60 afternoon-shift workers showed that the mean number of units produced was 351, with a standard deviation of 28 units. At the .05 significance level, is the number of units produced on the afternoon shift larger?
Tagged with: afternoon shift • day shift • shift workers • significance level • standard deviation
Filed under: Industrial Engineers
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This is hard to put in written words, specially with the limitations of format, but i suggest u to use a test of difference of proportions or a difference of means if ur variables r normally distributed.