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. $\text { Claim } \mu < 7.4 ; \alpha = 0.10 \text {. Sample statistics: } \bar { x } = 7 , s = 2.0 , \mathrm { n } = 20$