Test the Claim About the Population Mean μ at the Level

Essay

Test the claim about the population mean μ at the level of significance α. Assume the population is normally
distributed. $\text { Claim } \mu \geq 13.9 ; \alpha = 0.05 \text {. Sample statistics: } \bar { x } = 13 , \mathrm {~s} = 1.3 , \mathrm { n } = 10$