Test Hypotheses About a Population Mean with Unknown
-

Short Answer

Test Hypotheses about a Population Mean with Unknown
- $$\text { Use a t-test to test the claim } \mu \leq 2.8 \text { at } \alpha = 0.05 \text {, given the sample statistics } \mathrm { n } = 15 , \overline { \mathrm { x } } = 3.1 \text {, and } \mathrm { s } = 0.8 \text {. }$$