Test Hypotheses Regarding the Difference of Two Independent Means
-Test $\mu _ { 1 } \neq \mu _ { 2 }$

question 70

Short Answer

Test Hypotheses Regarding the Difference of Two Independent Means
-Test the hypothesis that $\mu _ { 1 } \neq \mu _ { 2 }$ . Two samples are randomly selected from each population. The sample statistics are given below. Use $\alpha = 0.02$ .
$$\begin{array} { l l } \mathrm { n } _ { 1 } = 51 & \mathrm { n } _ { 2 } = 38 \\\overline { \mathrm { x } } 1 = 8 & \overline { \mathrm { x } } 2 = 8.4 \\\mathrm {~s} 1 = 0.76 & \mathrm {~s} _ { 2 } = 0.51\end{array}$$

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Definitions:

Negative Reinforcement

A psychological concept where the likelihood of a behavior increases because an unpleasant stimulus is removed or avoided following the behavior.

Punishment

A method of correcting or disciplining an individual through the imposition of unpleasant or adverse consequences for undesired behavior.

OB Mod

Organizational Behavior Modification, a strategy aimed at improving employee performance through behavioral techniques.

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The efficiency at which inputs (such as labor and capital) are converted into outputs (goods or services).