A paper manufacturer has a production process that operates continuously through
ID: 3305052 • 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 0.04 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 11.002 inches. A 99% confidence interval estimate for the population mean paper length is 10.99168 11.01232. Is it true that you do not know for sure whether the population mean is between 10.99168 and 11.01232 inches? Explain.
Choose the correct answer below.
A. It is true because the population mean will be in the interval only 99% of the time.
B. It is true because the population mean will be in the interval only 1% of the time.
C. It is false because the sample mean falls outside the interval.
D. It is false because the sample mean falls within the interval.
mathxl.c BIS 221-03, Statistics forl Homework: Assessment 4 - Chapter Score: 0 of 1 pt 1 of 8 (0 comp A paper manufacturer has a production process that operates continuously throughout a inches, and the standard deviation of the length is 0.04 inch. At periodic intervals, a sam inches or whether something has gone wrong in the production process to change the le the mean paper length is 11.002 inches. A 99% confidence interval estimate for the popu know for sure whether the population mean is between 10.99168 and 11.01232 inches?Explanation / Answer
Option A is Correct. It is true because the population mean will be in the interval only 99% of the time
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