The Variance of a Distribution of Differences Between Means Is

question 49

Multiple Choice

The variance of a distribution of differences between means is equal to

• A)the difference between the variances of the two distributions of means.
• B)the sum of the variances of the two distributions of means.
• C)the difference between the two estimated population variances.
• D)the sum of the two estimated population variances.

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Definitions:

Amino Acids

Organic compounds that combine to form proteins, serving as the building blocks for cells, muscles, and tissues in the body.

Soluble Fiber

A type of dietary fiber that can dissolve in water, forming a gel-like substance that helps to slow digestion and can have beneficial effects on blood sugar and cholesterol levels.

Dietary Reference Intakes

Guidelines developed for nutrients and other dietary components that advise how much should be consumed daily to maintain good health.

Acceptable Macronutrient Distribution Ranges

Guidelines specifying the proportion of calories that should come from carbohydrates, proteins, and fats for a healthy diet.