The Sugar Producers Association Wants to Estimate the Mean Yearly

The Sugar Producers Association wants to estimate the mean yearly sugar consumption. A sample
Of 25 people reveals the mean yearly consumption to be 27 kg with a sample standard deviation of
9 kg. Assume a normal population. Develop a 90% confidence interval for the mean annual
Consumption of sugar.

A) 23.06 to 30.94
B) 23.285 to 30.715
C) 21.97 to 32.03
D) 23.30 to 30.70
E) 23.92 to 30.08