A researcher is investigating the amount of fruit punch in randomly selected juice pouches. The amount of punch (in ounces) in eight randomly selected pouches is shown below: 15.2 15.5 15.9 15.5 15.0 15.7 15.0 15.7 Construct a 99% confidence interval to estimate the mean amount of fruit punch in all such juice pouches. a). Which distribution will you use to construct this interval? b). The best point estimate to construct this confidence interval is c). The confidence interval estimate for the mean amount of fruit punch is: Construct a 90% confidence interval to estimate the standard deviation of fruit punch in all such juice pouches. a). Which distribution will you use to construct this interval? b). The best point estimate to construct this confidence interval is c). The confidence interval estimate for the standard deviation of the amount of fruit punch is