Test Hypotheses about a Population Proportion
-The business college computing center wants to determine the proportion of business students who have personal computers (PC's) at home. If the proportion differs from $30 \%$, then the lab will modify a proposed enlargement of its facilities. Suppose a hypothesis test is conducted and the test statistic is $2.5$. Find the $\mathrm { P }$-value for a two-tailed test of hypothesis.
A) $0.0124$
B) $0.0062$
C) $0.4876$
D) $0.4938$

Question

Quizplus · Accepted Answer

The P-value for a two-tailed test is found by doubling the one-tailed P-value corresponding to the test statistic. Given a test statistic of 2.5, the one-tailed P-value is approximately 0.0062. Doubling this for a two-tailed test gives 0.0124.

Test Hypotheses About a Population Proportion -The Business College Computing 30%30 \%30%

Test Hypotheses About a Population Proportion
-The Business College Computing $30 \%$