The world's smallest mammal is the bumblebee bat

The world's smallest mammal is the bumblebee bat. The mean weight of 15 randomly selected bumblebee bats is 1.659 grams, with a standard deviation of 0.264 grams. 1. Find a 99.9% confidence interval for the mean weight of all bumblebee bats at the following confidence levels (two places after decimal):(______, ______) 2. Find a 99% confidence interval for the mean weight of all bumblebee bats at the following confidence levels (two places after decimal):(______, ______) 3. Find a 95% confidence interval for the mean weight of all bumblebee bats at the following confidence levels (two places after decimal):(______, ______) 4. Find an 80% confidence interval for the mean weight of all bumblebee bats at the following confidence levels (two places after decimal):(______.______)