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Confidence Intervals for Population Variance
8. Sampling Distributions & Confidence Intervals: Proportion / Confidence Intervals for Population Variance / Problem 2
Problem 2

Find the critical values χ1α22\(\chi\)^2_{1-\(\frac{\alpha}{2}\)} and χα22\(\chi\)^2_{\(\frac{\alpha}{2}\)} for a confidence level of 90%90\% with sample size n=18n=18.