suppose the alternative hypothesis in a hypothesis test is "the population mean is less than 60" if the sample size is 50 and alpha =.05, the critical value of the z is?

Question

suppose the alternative hypothesis in a hypothesis test is "the population mean is less than 60"  if the sample size is 50 and alpha =.05, the critical value of the z is?

Zenayb · Accepted Answer

-1.96

PsyDAG · Answer

Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (p ≤ .05) and its Z score.