Short Answer
In a manufacturing process, we are interested in measuring the average length of a certain type of bolt. Based on a preliminary sample of 9 manufactured bolts, the sample standard deviation is .3 inches. How many bolts should be sampled in order to make us 95 percent confident that the sample mean bolt length is within .02 inches of the true mean bolt length?
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n = ([(tα/2 × s)/E...View Answer
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Correct Answer:
Verified
n = ([(tα/2 × s)/E...
View Answer
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