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Mathematics, 20.12.2019 19:31, eddsworldfrantic
When a production process is operating correctly, thenumber of units produced per hour has a normal distri- bution with a mean of 92.0 and a standard deviation of3.6. a random sample of 4 different hours was taken. a. find the mean of the sampling distribution of thesample means. b. find the variance of the sampling distribution ofthe sample mean. c. find the standard error of the sampling distribu-tion of the sample mean. d. what is the probability that the sample mean ex-ceeds 93.0 units?
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