You want to estimate the mean weight of quarters in circulation. A sample of 40 quarters has a mean weight of 5.682 grams and a standard deviation of 0.067 gram. Use a single value to estimate the mean weight of all quarters.Also, find the95% confidence interval for the average weight of all quarters.

The estimate for the mean weight of all quarters is

nothing grams.

(Round to three decimal places asneeded.)

Find the95% confidence interval for the mean weight of all quarters.

....grams<<.......grams

(Round to three decimal places asneeded.)