A. Critical Values for Hypothesis Tests (o known) a) For an upper tailed hypothesis test when...

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Answer 1

Answer #1

a) Critical value, z_α = ABS(NORM.S.INV(0.0197) = 2.060

b) Two tailed critical value, z_α/2 = ABS(NORM.S.INV(0.0104/2)) = 2.562

c) Lower tailed critical value, -z_α = NORM.S.INV(0.0132) = -2.220

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a) df = 27

Upper tailed critical value, t_α = ABS(T.INV(0.025, 27)) = 2.052

b) df = 58

Two tailed critical value, t_α/2 = T.INV.2T(0.02, 58) = 2.392

c) df = 43

Left tailed critical value, -t_α = T.INV(0.01, 43) = -2.416

Answer 2

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