A Researcher Wants to Determine the Efficacy of a Training

question 69

Multiple Choice

A researcher wants to determine the efficacy of a training program directed at improving concentration, focus, and memory on college students.She selects a random sample of 16 individuals and has them take an initial assessment test before the training program.Then the individuals complete the training program, and at the end they take a final test that's comparable to the initial test.The results are shown in the following table: $$\begin{array} { | c | c | c | } \hline \text { Individ. } & \text { Before } & \text { After } \\\hline 1 & 79 & 81 \\\hline 2 & 74 & 73 \\\hline 3 & 81 & 82.5 \\\hline 4 & 75 & 82.5 \\\hline 5 & 72.5 & 85 \\\hline 6 & 75 & 90 \\\hline 7 & 67.5 & 83.5 \\\hline 8 & 57.5 & 72.5 \\\hline 9 & 62.5 & 87.5 \\\hline 10 & 77.5 & 80 \\\hline 11 & 61.5 & 92.5 \\\hline 12 & 57.5 & 80 \\\hline 13 & 61.5 & 71 \\\hline 14 & 72.5 & 84 \\\hline 15 & 64 & 78.5 \\\hline 16 & 71 & 97.5 \\\hline\end{array}$$ The analyst uses a Wilcoxon matched-pairs signed rank test with a 0.05 significance level.The appropriate decision is ______.

• A)fail to reject the null hypothesis that the before and after scores are different
• B)reject the null hypothesis that that the before and after scores are different
• C)fail to reject the null hypothesis that the before and after scores are not different
• D)reject the null hypothesis that the before and after scores are not different
• E)do nothing

Analyze the production decisions of monopolies in relation to revenue maximization.

Differentiate between the revenue and profit maximization goals in monopolistic settings.

Explain the effect of market power on pricing strategies and consumer welfare.

Understand the importance and guidelines of good writing skills in legal documentation.

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Definitions:

Economic Issues

Concerns or challenges related to the production, distribution, and consumption of goods and services in a society.

Adolescents

Individuals in the developmental stage between childhood and adulthood, typically between the ages of 10 and 19, characterized by significant physical, emotional, and cognitive changes.

Younger Children

Refers to children in early childhood, typically ranging from toddlers to early elementary age, undergoing rapid developmental changes physically and cognitively.

Ideal Selves

The conception of how someone would like to be or thinks they should be, often used in contrast with their actual self.