Ten Different Families Are Tested for the Number of Gallons

question 12

Multiple Choice

Ten different families are tested for the number of gallons of water a day they use before and after viewing a conservation video.Construct a 90% confidence interval for the mean of the
Differences. $$\begin{array} { | l | l | l | l | l | l | l | l | l | l | l | } \hline \text { Before } & 33 & 33 & 38 & 33 & 35 & 35 & 40 & 40 & 40 & 31 \\\hline \text { After } & 34 & 28 & 25 & 28 & 35 & 33 & 31 & 28 & 35 & 33 \\\hline\end{array}$$

• A)(1.8, 7.8)
• B)(2.5, 7.1)
• C)(3.8, 5.8)
• D)(1.5, 8.1)
• E)(2.1, 7.5)

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Definitions:

Shaping

A technique in training where closer and closer matches to the aimed behavior receive reinforcement.

Extinction

Within the realm of psychology, this refers to the slow diminishment and ultimate vanishing of a learned reaction when the previously associated stimulus is no longer linked with the natural stimulus.

Generalization

The process or result of making a statement or conclusion that applies to many instances from specific observations.

Extinction

In psychology, the gradual weakening and eventual disappearance of a learned response when it is no longer reinforced.