2201_Quiz4_KEY

# 4b 001 4c 001 proportion follows the z curve 0

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Unformatted text preview: µ = 0.01 μ = μ0 = 0.01 2D. (0.54, 0.58) ⎛ 0.56*0.44 ⎞ 0.56 ± 1.75 ⎜ ⎟ ⎜ 2208 ⎟ ⎝ ⎠ 4C. µ ≠ 0.01 Changed means ≠ 4D. Do not reject the null. Page 1 of 2 Revised 11/19/2009 2201_Quiz4_KEY.docx Answers 5A. psalk – pplacebo = 0, Tips psalk – pplacebo < 0 psalk should be less than pplacebo 33 5B. 0.165, 0.575 5C. –8.49 200 115 200 0.165 0.575 z0 = ( 0.165 − 0.575) 1⎞ ⎛1 0.37 * (1 − 0.37 ) * ⎜ + ⎟ ⎝ 200 200 ⎠ = −8.49 5D. (–0.52, –0.30) ( 0.165 − 0.575) ± 2.57 .165* (1 − .165 ) .575* (1 − .575 ) + 200 5E. Yes. 200 –8.49 < –2.33 ⇒ REJ H0 ⇒ Significantly Different Page 2 of 2...
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## This note was uploaded on 05/20/2010 for the course EXST 2201 taught by Professor Mckenna during the Spring '08 term at LSU.

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