Many researchers believe moderate physical activity, such as walking, will help prevent weight gain. To study...

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Many researchers believe moderate physical activity, such as walking, will help prevent weight gain. To study...

Many researchers believe moderate physical activity, such as walking, will help prevent weight gain. To study this claim, doctors in Colorado has randomly selected patients wear a pedometer to measure the distance walked in miles per week. Based on a sample of 28 individuals, the sample variance of the measurements is 7.66.

a. Find a 95% confidence interval for the true variance in distance walked per week.

b. What assumption did you make in constructing the confidence interval above?

math Statistics-And-Probability

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Many researchers believe moderate physical activity, such as walking, will help prevent weight gain. To study...