Given $\bar{X}=115, \mu=119, \sigma=20$ And $N=144$ , Conduct a Two-Tailed Z-Test

question 19

Essay

Given $\bar{X}=115, \mu=119, \sigma=20$ and $N=144$ , conduct a two-tailed z-test.Use α = .05.Be sure to set up your hypotheses and rejection region, calculate your z-score, and state your decision.