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Use the One-Proportion Z-Test to Perform the Specified Hypothesis Test

Question 104

Multiple Choice

Use the one-proportion z-test to perform the specified hypothesis test. Use the critical-value approach.
- x=18,n=100,H0:p=0.2,Ha:p≠0.2,α=0.01\mathrm { x } = 18 , \mathrm { n } = 100 , \mathrm { H } _ { 0 } : \mathrm { p } = 0.2 , \mathrm { H } _ { \mathrm { a } } : \mathrm { p } \neq 0.2 , \alpha = 0.01


A) z=−0.500\mathrm { z } = - 0.500 ; critical values =±2.575= \pm 2.575 ; do not reject H0\mathrm { H } _ { 0 }
B) z=−0.500\mathrm { z } = - 0.500 ; critical values =±2.33= \pm 2.33 ; do not reject H0\mathrm { H } _ { 0 }
C) z=−0.310\mathrm { z } = - 0.310 ; critical values =±2.575= \pm 2.575 ; do not reject H0\mathrm { H } _ { 0 }
D) z=−0.310\mathrm { z } = - 0.310 ; critical values =±2.33= \pm 2.33 ; reject H0\mathrm { H } _ { 0 }

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