A sample of 16 small bags of the same brand of candies was selected. Assume that the population distribution of bag weights is normal. The weight of each bag was then recorded. The mean weight was two ounces. The population standard deviation is known to be 0.1 ounce. Construct and interpret a 90% confidence interval for the population mean weight of the candies.

Suppose that a committee is studying whether there is waste of time in our judicial system or not. It is interested in the mean amount of time individuals waste at the courthouse waiting to be called for jury duty. The committee surveyed 81 recent jurors at random. The sample mean wait time was eight hours with a sample standard deviation of four hours. Construct and interpret a

95% confidence interval for the population mean time wasted.

What is the main difference between these two confidence intervals?

I have already solved the questions. Just need to know the differences. i think I have an answer but just want to double check.