Which of the Following Is NOT a Required Assumption for Constructing

question 37

Multiple Choice

Which of the following is NOT a required assumption for constructing a confidence interval to estimate the difference between two population means when the sample sizes are small (less than 30) ?

• A) The samples are randomly selected from the population.
• B) The population variances are equal to 1.
• C) The population variances are equal.
• D) The two populations are normally distributed.

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Definitions:

Bloodstream

The Bloodstream refers to the continuous flow of blood through the circulatory system, delivering nutrients and oxygen to cells and removing waste products.

Somatic Nervous System

The part of the peripheral nervous system that handles voluntary control of body movements through the control of skeletal muscles.

Autonomic Nervous System

Part of the nervous system that controls involuntary body functions, such as heart rate, digestion, and respiration, divided into the sympathetic and parasympathetic nervous systems.

Parasympathetic Nervous System

Part of the autonomic nervous system that conserves energy as it slows the heart rate, increases intestinal and gland activity, and relaxes sphincter muscles.