A sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. Assume the amount of garbage per bin is normally distributed. In a random sample of 40 bins, the sample mean amount is 52.8 pounds and the population standard deviation is 3.9 pounds. Construct 95% and 99% confidence intervals for the mean amount of garbage per bin for all bins in the city. Don't use 68/95/99.7 rule; instead use R to compute the quantities such as quantiles.

Answer: a) 51.592 b) 54.008 c) 51.213 d) 54.387Step-by-step explanation:a) lower limit of 95% interval Lower limit = 52.8 - (1.96) (3.9/sqrt 40) = 51.592b) upper limit of 95% interval upper limit = 52.8 + (1.96) (3.9/sqrt 40) = 54.008c) lower limit of 99% interval Lower limit = 52.8 - (2.576) ( 3.9 / sqrt 40)= 51.213d) upper limit of 99% interval Upper limit = 52.8 + (2.576) ( 3.9 / sqrt 40) = 54.387