When Calculating the Confidence Interval for an Average,the Standard Deviation

question 49

Multiple Choice

When calculating the confidence interval for an average,the standard deviation is used:

• A)because it indicates lack of variability
• B)because it is the appropriate measure of variability for a metric variable
• C)because it is the appropriate measure of variability for a categorical variable
• D)because it is smaller and less expensive to calculate
• E)none of the above; standard deviation is not used to calculate confidence for an average

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Definitions:

Knowledge Retention

The process by which information and skills are retained in an individual or organization, often involving memory and learning practices.

Exam Grade

A measure or score assigned to evaluate a student's performance on an academic examination, reflecting the level of understanding and mastery of the subject matter.

Rosenberg Self-Esteem Scale

A widely used self-report instrument for evaluating individual self-esteem, consisting of ten items related to overall feelings of self-worth or self-acceptance.

Reliable

The quality of being consistently accurate and trustworthy over time, showing dependable results or performance.