What is a 95 percent confidence interval for μ when n = 10, =35.6,and s = 13.0? Assume population normality.

Question

Quizplus · Accepted Answer

Using the formula for a 95% confidence interval for the population mean, we find:

- Lower limit = x̄ - 1.96 * (s/√n) = 35.6 - 1.96 * (13/√10) ≈ 26.30
- Upper limit = x̄ + 1.96 * (s/√n) = 35.6 + 1.96 * (13/√10) ≈ 44.90

Therefore, the 95% confidence interval is [26.30,44.90]. Option B is the only one that contains these values.

What Is a 95 Percent Confidence Interval for μ When