Construct a confidence interval for the mean workout length

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Sports and Leisure There are three main types of exercises: range-of-motion (flexibility), strengthening, and endurance. A random sample of people who exercise regularly was obtained. The type of exercise and length (in minutes) of each workout was recorded. The table below summarizes the information obtained.

a. Construct a 99% confidence interval for the mean workout length for each of the three types of exercises.

b. A group of exercise scientists claims the length of a workout for range-of-motion exercises is the same as for the other two types. Based on the confidence intervals in part (a), is there any evidence to refute this claim?

Reference no: EM131430972

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