A manager in a company needs to make sure that the cereal packages weigh at least...
A manager in a company needs to make sure that the cereal packages weigh at least fourteen ounces (14.0) on average. Assume that the standard deviation of the weight of the packages is known to be 0.5 ounces. The manager tasks one of her employees to choose 30 packs at random and find the average weight. For what values would the manager tell the employee to reject the production, if she wanted the probability of a Type I error to be 0.05 or less?
A. reject production if the sample mean is below the critical mean value of 13.90 ounces.
B. reject production if the sample mean is below the critical mean value of 13.82 ounces.
C. reject production if the sample mean is below the critical mean value of 13.85 ounces.
D. None of these answers are correct.
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A manager in a company needs to make sure that the cereal
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