When computing a 95 percent confidence interval for σ² with a sample of n = 30, what values of χ² would we use in the calculations? A) 45.7222 and 16.0471 B) 46.9792 and 16.7908 C) 42.5569 and 17.7083 D) 43.7729 and 18.4926

Question

Quizplus · Accepted Answer

N − 1 = 29 degrees of freedom with alpha = 0.05
critical values = 45.7222 and 16.0471

When Computing a 95 Percent Confidence Interval for σ2 with a Sample

When Computing a 95 Percent Confidence Interval for σ² with a Sample