Consider the following hypothesis test: H0 : µ ≥ 25 Ha : µ < 25 For a sample of 100 and a population standard deviation of 12, compute the value of the test statistic z. Using α = .05, specify your conclusion for each of the following sample results.
A) x = 22.0
B) x = 23.5
C) x = 24.0
D) x = 22.8