You want to estimate the mean weight of quarters in circulation.A sample of 50 quarters has a mean weight of 5.643 grams and astandard deviation of 0.065 grams. Use a single value to estimatethe mean weight of all quarters.? Also, find the? 95% confidenceinterval for the average weight of all quarters. Q- The mean weightof all quarters is approximately ? grams Q- The lower limit of the?95% confidence interval is ? Q- The upper limit of the? 95%confidence interval is? Q- Thus, the? 95% confidence interval forthe average weight of all quarters ranges from ? grams to ?grams.
