Suppose that the following is to be tested: $\mathrm { H } _ { 0 } : \mathrm { p } = 0.35$ and $\mathrm { H } _ { \mathrm { a } } : \mathrm { p } 0.35$. Calculate the observed $z$-statistic for the following sample data: Forty out of eighty test subjects have the characteristic of interest. Round to the nearest hundredth.
A) $z = - 1.87$
B) $z = 1.88$
C) $z = - 0.94$
D) $\mathrm { z } = 2.81$

Question

Suppose that the following is to be tested: $\mathrm { H } _ { 0 } : \mathrm { p } = 0.35$ and $\mathrm { H } _ { \mathrm { a } } : \mathrm { p } > 0.35$. Calculate the observed $z$-statistic for the following sample data: Forty out of eighty test subjects have the characteristic of interest. Round to the nearest hundredth.
A) $z = - 1.87$
B) $z = 1.88$
C) $z = - 0.94$
D) $\mathrm { z } = 2.81$

Quizplus · Accepted Answer

The Answer is D

Suppose That the Following Is to Be Tested H0:p=0.35\mathrm { H } _ { 0 } : \mathrm { p } = 0.35H0​:p=0.35

Suppose That the Following Is to Be Tested $\mathrm { H } _ { 0 } : \mathrm { p } = 0.35$