THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 18

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A dependent random sample from two normally distributed populations gives the following results:
n = 20,
= 26.5,s₂ = 3.2
-The confidence interval for the difference between two population means that are normally distributed where the population variances are unknown but assumed to be equal rely on:

• A)the Satterthwaite's approximation.
• B)the pooled sample variance.
• C)the estimated sample variance.
• D)the average sample variance.

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Definitions:

Female Psychologist

Refers to a psychologist who identifies as female and may contribute to the field with perspectives and research focusing on gender, among other areas of psychology.

Doctorate

The highest academic degree awarded by universities, typically after completion of extensive research in a specific field of study.

Mary Whiton Calkins

An early American psychologist who was the first female president of the American Psychological Association.

Margaret Floy Washburn

An early 20th-century psychologist known for being the first woman to earn a PhD in psychology and for her work in animal behavior and motor theory development.