47 of 20 (2 complete) This Quiz: 20 pts possibl 9 This : 1 pt A quality control

Question

47 of 20 (2 complete) This Quiz: 20 pts possibl 9 This : 1 pt A quality control technician wanted to construct a confidence interval for the average weight of tablets of a nutitional supplement being produced at a company's manufacturing facity. The technician selected a si ple random sa e of 1500 tablets, and a 90% confidence int val f the average weght of all tablets was detom ned to be 3412 mg 3454 mg which of the follow ng is a correct OA. We can be 90% confident that the average weight ofthe tablets in this sample is between 3412 and 3454 miligrams OB. We can be90% confident that 90% of all tablets have weights between 3412 and 3454 miligrams OC. We can be 90% confident that the average weght of all tablets es between 3412 and 3454 miligrams D. 90% of all tablets have wegts between 3412 and 3454 miligrams EN 1204 PM 9/34/2015

Explanation / Answer

Solution:

Option (C) is correct.

We are 90% confident that the average weight of all tablets is between 3412 and 3454 milligrams.

Reason:

Confidence Interval tells us that we are 90% confident that our population mean lies between the confidence limits.

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