Test the means of two populations
The population of lengths of aluminum-coated steel sheets is normal distributed with a mean of 30.05 inches
July 9, 2019Standard Deviation vs. Population Standard Deviation
July 9, 2019Clark Heter is an industrial engineer at Lyons products. He would kike to determine weather there are more units produced on the afternoon shift than on the day shift a sample of 54 day shift workers showed that the meannumber of units produce was 345 with a standard deviationof 21. A sample of 60 afternoon shift workers showed that the mean number of units produce 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?
Clark Heter is an industrial engineer at Lyons Products. 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 …
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