HW5 AnsPage

# HW5 AnsPage - Picon, Renee STAT 3331 Section 11052 HW 5...

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Picon, Renee STAT 3331 Section 11052 HW 5 1.a. Step1: H 0 : μ = 20 H a : μ ≠ 20 Step2: t crit = ±4.317 Step3: Reject H 0 if t stat < -4.317 or if t stat > 4.317 Step4: t stat = 3.956 Step5: Fail to Reject H 0 Step6: TIN SETC μ 20 Step7: .005 < P-value <.01 1.b. (20.7527, 23.1931) 1.c. .975 < P-value < .995 2.a. Step1: H 0 : p ≤ .80 H a : p > .80 Step2: z crit = 1.96 Step3: Reject H 0 if z stat > 1.96 Step4: z stat = 1.60 Step5: Fail to Reject H 0 Step6: TIN SETC p > .80 Step7: P-value = .0548 2.b. (.7858, .8688) 3.a. -59.3931 3.b. 870.9483 4.a. Step1: H 0 : p .85 H a : p < .85 Step2: Z crit = -2.33 Step3: Reject H 0 if Z stat < -2.33 Step4: Z stat = -1.8982 Step5: Fail to Reject H 0 Step6: TIN SETC p < .85 Step7: P-value = .0294 4.b. (0.8029,0.8468) 5.a. Step1: H 0 : μ 20 H a : μ 20 Step2: t crit = 1.677 Step3: Reject H 0 if t stat 1.677 Step4: t stat = 1.8511 Step5: Reject H 0 Step6: TISETC μ 20 Step7: .025 < P-value < .05

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## This note was uploaded on 02/13/2011 for the course STAT 3331 taught by Professor Smith during the Fall '08 term at University of Houston.

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HW5 AnsPage - Picon, Renee STAT 3331 Section 11052 HW 5...

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