CI's and tests for ratio of two population variances, difference between two population proportions
16 important questions on CI's and tests for ratio of two population variances, difference between two population proportions
1. Hypothesis Test for p₁ – p₂
2. Test Statistic for p₁ – p₂ (h = 0)
3. Test Statistic for p₁ – p₂ (h ≠ 0)
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5. Confidence Interval Proportion
Q: When do you use pooled p̂?
Q: Standard error for CI of p₁ – p₂?
Q: Z-statistic when h ≠ 0?
1. Hypothesis Tests for Variance Ratio
2. Test Statistic for Variance Ratio
3. Degrees of Freedom for Variance Ratio
4. Rejection Regions for Variance Ratio
5. Confidence Interval for Variance Ratio
Q: Test statistic F for equal variances?
Q: DF for variance ratio test?
df₁ = n₁−1
df₂ = n₂−1
Q: When do we invert F critical values?
Q: CI for variance ratio?
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