A machine at Katz Steel Corporation makes 5-inch-long nails. The probability distribution of the lengths of these nails is approximately normal with a mean of 5 inches and a standard deviation of 0.51 inches. The quality control inspector takes a sample of 114 nails once a week and calculates the mean length of these nails. If the mean of this sample is either less than 4.87 inches or greater than 5.11 inches, the inspector concludes that the machine needs an adjustment. What is the probability that based on a sample of 114 nails, the inspector will conclude that the machine needs an adjustment when it actually does not? For the following, report probabilities between 0 and 1; round all answers to no fewer than 4 decimal places.
A machine at Katz Steel Corporation makes 5-inch-long nails. The probability distribution of the lengths of these nails is approximately normal with a mean of 5 inches and a standard deviation of 0.51 inches. The quality control inspector takes a sample of 114 nails once a week and calculates the mean length of these nails. If the mean of this sample is either less than 4.87 inches or greater than 5.11 inches, the inspector concludes that the machine needs an adjustment. What is the probability that based on a sample of 114 nails, the inspector will conclude that the machine needs an adjustment when it actually does not?
For the following, report probabilities between 0 and 1; round all answers to no fewer than 4 decimal places.
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