Question

You will need the Normal Table.

2.The number of calories in a  plate of Chef Alfredo’s lasagna has μ =1050 calories and σ=136 calories.

a) If 35 plates of the lasagna are randomly selected, find the expected value and standard deviation of number of calories.

b) What is the probability that the average calorie count of these 35 plates of lasagna is less than 1000? Use 2 decimal places for the z- score and

4 decimal places for the probability.

Answer 1

Let denotes the average calorie count of randomly selected 35 plates of lasagna.

a) The expected value of average number of calories

The standard deviation of average number of calories

b)