A farmer finds the mean mass for a random sample of 200 eggs

Last updated: 6/26/2023

A farmer finds the mean mass for a random sample of 200 eggs laid by his hens to be 57 2 grams If the masses of eggs for this breed of hen are normally distributed with standard deviation 1 5 grams estimate the mean mass to the nearest tenth of a gram of the eggs for this breed using a 99 confidence interval Recall the following z scores for each level of confidence 90 1 645 95 1 960 and 99 2 575