Make the following tests of hypotheses a H0 25
Make the following tests of hypotheses.
a. H0: µ = 25, H1: µ ≠ 25, n = 81,  = 28.5, σ = 3, α = .01
b. H0: µ = 12, H1: µ ≠ 12, n = 45,  = 11.25, σ = 4.5, α = .05
c. H0: µ = 40, H1: µ ≠ 40, n = 100,  = 47, σ = 7, α = .10
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