A Random Sample of 16 Companies Was Selected and Asked $\pm$

question 70

Multiple Choice

A random sample of 16 companies was selected and asked for their annual dividend rate in three different industries: utilities,banking,and insurance.The ANOVA comparing the mean annual dividend rate among three industries rejected the null hypothesis.The Mean Square Error (MSE) was 3.36.The following table summarized the results: When comparing the mean annual dividend for companies in the utilities and insurance industries,the following 95% confidence interval can be constructed:

• A)5.78 \(\pm\)2.160 * 2.40
• B)5.78 \(\pm\) 2.120 * 2.40
• C)5.78\(\pm\) 2.160 * 1.11
• D)5.78\(\pm\) 2.120 * 1.11

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Definitions:

Overjustification Effect

A phenomenon where providing an external incentive for a behavior that is already internally rewarding can lead to a decrease in intrinsic motivation for that behavior.

Intrinsic Motivation

The drive to engage in an activity for its own sake, deriving pleasure and satisfaction from the activity itself rather than external rewards.

Secondary Motivation

The drive to perform an action or engage in behavior based on external rewards or pressures, rather than intrinsic or personal desires.

Delay Of Gratification

The act of forgoing an instant gratification in favor of receiving a reward at a later time.