Test each of the following hypotheses by using the given information. Assume the populations are normally distributed.
Question:
Test each of the following hypotheses by using the given information. Assume the populations are normally distributed.
a. H0: σ2 = 20. Ha: σ2 > 20. α = 0.05, n = 15, s2 = 32
b. H0: σ2 = 8.5. Ha: σ2 ≠ 8.5. α = 0.10, n = 22, s2 = 17
c. H0: σ2 = 45. Ha: σ2 < 45. α = 0.01, n = 8, s2 = 4.12
d. H0: σ2 = 5. Ha: σ2 ≠ 5. α = 0.05, n = 11, s2 = 1.2
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Related Book For
Business Statistics For Contemporary Decision Making
ISBN: 9781119577621
3rd Canadian Edition
Authors: Ken Black, Ignacio Castillo
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