A Researcher Is Estimating the Average Difference Between Two Population

question 46

Multiple Choice

A researcher is estimating the average difference between two population means based on matched-pairs samples.She gathers data on each pair in the study resulting in: Assume that the data are normally distributed in the population.To obtain a 90% confidence interval, the table t value would be ___.

• A)1.86
• B)1.397
• C)1.533
• D)2.132
• E)3.346

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Definitions:

Procedural Knowledge

Knowledge of how to perform tasks or activities, often demonstrated through actions rather than conscious awareness.

Environmental Contingences

This term refers to the idea that the environment can shape behavior by presenting or withholding reinforcements or punishments.

Me Self

A concept in psychology referring to the objective aspect of oneself that is observed and known by others, forming part of an individual's self-concept.

Epistemological Self

Knowledge of one’s own personality traits, experiences, and other attributes; also called the me, as opposed to the I or ontological self.