Test Hypotheses About a Population Mean with Known Using the Classical

Multiple Choice

Test Hypotheses about a Population Mean with Known Using the Classical Approach
-You wish to test the claim that $\mu > 21$ at a level of significance of $\alpha = 0.05$ and are given sample statistics $n = 50$ , $\bar { x } = 21.3$ , and $\sigma = 1.2$ . Compute the value of the test statistic. Round your answer to two decimal places.

A) $1.77$
B) $2.31$
C) $0.98$
D) $3.11$