The sugar content of the syrup in canned peaches is normally distributed with mean 20 milligrams. A random sample of 10 cans yield standard deviation of 4.8 milligrams and mean of 15.5 milligrams. 1)...

The sugar content of the syrup in canned peaches is normally distributed with mean 20 milligrams. A random sample of 10 cans yield standard deviation of 4.8 milligrams and mean of 15.5 milligrams.


1) Find the 95 percent confidence interval of the mean sugar content of syrup in canned peaches. Hence, interpret its value.
2) Test the hypothesis that the mean of sugar content of syrup in canned peaches is not similar to 20 milligrams.