A nutritionist is interested in monitoring the calorie intake of women. It was found that in a selected random sample of 50 female adults, the average daily intake of meat products is 2,200 calories per day with a standard deviation of 300 calories.

• What is the margin of error?

choices:

a. 83.16

b. 98.85

c. 109.46

• What is the length of the confidence interval?

• Construct a 99% confidence interval for .