Test2_cover - X Y (independent) 2 X n X + 2 Y n Y...

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STA 3032 - Section 7661 - Fall 2011 - Exam 2 Write all answers on the scantron. Nothing you write on the test paper will be graded. Tests will not be graded without picture ID. If you do not have a picture ID with you at the testing site, please bring a picture ID to the instructors o ce hours to receive a grade. Calculators are allowed. No other materials are allowed, other than a writing utensil. You may Fnd the following information helpful: Situation Standard Error Large Sample CI for μ σ / n CIs for p ° ˆ p (1 ˆ p ) ˜ n Small-Sample CIs for μ s/ n Large-Sample CIs for
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Unformatted text preview: X Y (independent) 2 X n X + 2 Y n Y Small-Sample CIs X Y , pooled variances s p 1 n X + 1 n Y Small-Sample CIs X Y (independent) s 2 X n X + s 2 Y n Y CIs with Paired Data s D / n = n 1 degrees of freedom = n 1 + n 2 2 degrees of freedom, S 2 p = ( n 1 1) S 2 1 +( n 2 1) S 2 2 ( n 1 1)+( n 2 1) = s 2 X n X + s 2 Y n Y 2 ( s 2 X /n X ) 2 n X 1 + ( s 2 Y /n Y ) 2 n Y 1 degrees of freedom...
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This note was uploaded on 12/13/2011 for the course STA 3032 taught by Professor Kyung during the Fall '08 term at University of Florida.

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