Assume That You Want to Test the Claim That the Paired

question 59

Multiple Choice

Assume that you want to test the claim that the paired sample data come from a population for which the mean difference is $\mu _ { \mathrm { d } } = 0$ . Compute the value of the $t$ test statistic.
-A farmer has decided to use a new additive to grow his crops. He divided his farm into 10 plots and kept records of the corn yield (in bushels) before and after using the additive. The results are shown below. $\begin{array} { l l l l l l l l l l l } \text { Plot: } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\text { Before } & 9 & 9 & 8 & 7 & 6 & 8 & 5 & 9 & 10 & 11 \\ \text { After } & 10 & 9 & 9 & 8 & 7 & 10 & 6 & 10 & 10 & 12 \end{array}$
You wish to test the following hypothesis at the 5 percent level of significance.
$$\mathrm { H } _ { \mathrm { O } } : \mu _ { \mathrm { D } } = 0 \text { against } \mathrm { H } _ { 1 } : \mu _ { \mathrm { D } } \neq 0 \text {. }$$ What is the value of the appropriate test statistic?

• A)2.536
• B)1.584
• C)5.014
• D)2.033

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Definitions:

Incentives

Rewards or motivations provided to encourage specific behaviors or actions.

Learning

The method of obtaining new comprehension, knowledge, conduct, capabilities, beliefs, or inclinations.

Homeostasis

The process by which living organisms maintain a stable internal environment to function effectively, despite external changes.

Drive-reduction Theory

A theory of motivation that proposes an individual's behavior is an external display of the desire to satisfy physiological needs.