A paper manufacturer has a production process that operates continuously through
ID: 3022624 • Letter: A
Question
A paper manufacturer has a production process that operates continuously throughout an entire production shift. The paper is expected to have a mean length of 11 inches, and the standard deviation of the length is 0.02 inch. At periodic intervals, a sample is selected to determine whether the mean paper length is still equal to 11 inches or whether something has gone wrong in the production process to change the length of the paper produced. A random sample of 100 sheets is selected, and the mean paper length is 11 001 inches A 99% confidence interval estimate for the population mean paper length is 10 99584Explanation / Answer
Option (D) Correct.
It is true because Population mean will be in the interval only 99% of time.
99% confidence interval means that population mean will be with in interval at the confident 99% (chance)
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