You want to estimate the mean weight of quarters in circulation. A sample of 50 quarters has a mean weight of 5.676 grams and a standard deviation of...

You want to estimate the mean weight of quarters in circulation. A sample of 50 quarters has a mean weight of 5.676 grams and a standard deviation of 0.068 gram. Use a single value to estimate the mean weight of all quarters. Also, find the 95% confidence interval for the average weight of all quarters.

The estimate for the mean weight of all quarters is ___ grams. (Round to one decimal place as needed.)

Find the 95% confidence interval for the mean weight of all quarters.

__ grams < μ