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 8 inches, and the standard deviation of the length is 0.03 inch. At periodic intervals, a sample is selected to determine whether the mean paper length is still equal to 8 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 8.002 inches. A 95% confidence interval estimate for the population mean paper length is 7.99612 sus 8.00788. Is it true that you do not know for sure whether the population mean is between 7.99612 and 8.00788 inches? Explain. Choose the correct answer below. O A. It is faise because the sample mean falls within the interval. O B. It is false because the sample mean falls outside the interval. OC. Itis true because the population mean will be in the interval only 95% of the time. O D. It is true because the population mean will be in the interval only 5% of the time.

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