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Straight Clark is an industrial engineer in Lyons Products, and would like to determine if there are more units on the night shift in the morning,
Straight Clark is an industrial engineer in Lyons Products, and would like to determine if there are more units on the night shift in the morning, Assume the population standard deviation for the number of units produced in the morning shift is 21 and 28 in the night. A sample of the morning shift 54 workers revealed that the average number of units produced was 345. A sample of 60 night shift workers revealed that the average number of units produced was 351. With a significance level of 0.05, is greater the number of units produced on the night shift?
