Find the standardized test statistic t for a sample with $\mathrm { n } = 15 , \overline { \mathrm { x } } = 7.2 , \mathrm {~s} = 0.8 \text {, and } \alpha = 0.05 \text { if } \mathrm { H } _ { 0 } : \mu \leq 6.9 \text {. }$ Round your answer to three decimal places.
A)1.452
B)1.728
C)1.631
D)1.312

Question

Quizplus · Accepted Answer

The correct choice is A because the standardized test statistic t is calculated as:$$t = \frac{\overline{x} - \mu_0}{s/\sqrt{n}} = \frac{7.2 - 6.9}{0.8/\sqrt{15}} = 1.452$$

Find the Standardized Test Statistic T for a Sample With \mathrm