Test Hypotheses About a Population Mean with Unknown
-Find the Standardized

Multiple Choice

Test Hypotheses about a Population Mean with Unknown
-Find the standardized test statistic t for a sample with $\mathrm { n } = 20 , \bar { x } = 11.2 , \mathrm {~s} = 2.0$ , and $\alpha = 0.05$ if $\mathrm { H } _ { 1 } : \mu < 11.6$ . Round your answer to three decimal places.

A) $- 0.894$
B) $- 0.872$
C) $- 1.265$
D) $- 1.233$