13 Test 2 Rev

# 13 Test 2 Rev - BUAD 310 Test 2 Topics Wednesday Confidence...

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- 1 - BUAD 310 Test 2 Topics Wednesday, October 13, 2010 Confidence Intervals (Chapter 15) (1- α)100% CI for a Population Mean with Known σ Sample Size Determination t Distribution, Degrees of Freedom (df) (1- α)100% CI for a Population Mean with Unknown σ Degrees of Freedom (df) = n 1 CI for a Population Proportion Sample Size Determination Interpretation of Confidence Interval Confidence Interval vs Tolerance Interval Hypothesis Testing, Two Sample Inference (Chapters 16 & 18) One-Sided and Two-Sided Hypothesis Tests Test Statistic, p-value Statistical Significance, α levels for rejection z Test for a Population Mean (Known σ ) z statistic One-Sample t Test ( Unknown σ ) t statistic Degrees of Freedom (df) = n - 1 / 2 x z n / 2 s x t n n x z 0 n s x t 0

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- 2 - Hypothesis Test for a Population Proportion
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