The Rejection Region for Testing H₀ $\mu$ = 80 VsH₁ $\mu$ $\lt$

question 115

Multiple Choice

The rejection region for testing H₀: $\mu$ = 80 vs.H₁: $\mu$ $\lt$ 80,at the 0.10 level of significance is:

• A) z > 1.96
• B) z < 0.90
• C) z > 1.28
• D) z < -1.28

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Definitions:

Refrigeration

The process of cooling or freezing a space or substances to preserve perishable items, such as food or medicine.

Food Additives

Substances added to food to preserve flavor or enhance its taste, appearance, or other qualities.

Lung Cancer

A form of cancer that begins in the lung tissues, commonly linked to smoking and contact with hazardous materials.

Stomach Cancer

A type of cancer that begins in the stomach, also known as gastric cancer.