Hypothesis_Testing-_Mean_of_a_population_SD_known-final

Hypothesis_Testing-_Mean_of_a_population_SD_known-final -...

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Rej. Region Rej. Region Acceptance Region Acceptance Region Rej. Region Rej. Region Hypothesis Testing-Mean of a Population Standard deviation of the population σ known A) ONE-TAILED TESTS: Decision Rule: 1)- Upper or Right-Tailed Tests α c < α , Reject H o & accept H a α c > α , Do not reject H o or accept H o H o : μ ≤ μ o Z c > Z α , Reject H o and Accept H a H a : μ > μ o Z c < Z α , Do not reject H o or Accept H o α Z c = x σ μ - X where Z α α c 2)- Lower or Left –Tailed Tests H o : μ ≥ μ o α c < α , Reject H o & accept H a H a : μ < μ o α c > α , Do not reject H o or accept H o Z c to left of Z α , Reject H
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