Question

The sugar content of the syrup in canned peaches is normally distributed. A random sample of n = 10 cans yields a sample standard deviation of s = 4.8 milligrams. Calculate a 95% two-sided confidence interval for σ.

Answer 1

To calculate a 95% two-sided confidence interval for σ, use the formula CI = (s√(n-1), s√(n-1)). Plugging in the given values, we have CI = (14.4, 14.4).

Step-by-step explanation:

To calculate a 95% two-sided confidence interval for σ, we can use the formula:

CI = (s√(n-1), s√(n-1))

Where CI is the confidence interval, s is the sample standard deviation, and n is the sample size.

Plugging in the given values, we have:

CI = (4.8√9, 4.8√9)

CI = (14.4, 14.4)

Therefore, the 95% two-sided confidence interval for σ is (14.4, 14.4).