Find a confidence interval for the population variance

Reference no: EM131431285

Public Health and Nutrition

In June 2013 the Agriculture Department banned all high-calorie sports drinks and candy bars from school vending machines. Many beverage companies had already added sports drinks to replace high-calorie sodas. The new rules stipulate that sports drinks must contain 60 calories or less in a 12-ounce serving. A random sample of sports drinks was obtained, and the calories in each was recorded.

a. Find a 95% confidence interval for the population variance in calories for sports drinks.

b. Find a 95% confidence interval for the population standard deviation in calories for sport drinks.

Reference no: EM131431285

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