The Fourth Step in Calculating a Confidence Interval for an Independent-Samples

question 86

Multiple Choice

The fourth step in calculating a confidence interval for an independent-samples t test is to:

• A) look up the t statistics for the lower and upper bounds.
• B) draw a normal curve.
• C) write the percentages for the upper and lower bounds.
• D) convert the t statistics to raw differences between means.

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Definitions:

Natural Selection

A mechanism of evolution where organisms better adapted to their environment tend to survive and reproduce more offspring.

Adopted Children

Individuals who have been legally taken into a family different from their birth family, becoming full members of the adoptive family with all the rights and responsibilities that entails.

Biological Parents

The individuals from whom a person inherits their genetic characteristics, typically referred to as the natural mother and father.

Adoptive Parents

Individuals who have legally taken on the responsibility of caring for a child that is not biologically theirs, providing parental care and support.