In Order to Improve the Grades of Students at UTC

question 3

Short Answer

In order to improve the grades of students at UTC, several incentive programs have been introduced. Results of random samples of grades from after and before the incentive programs are given below.
$\begin{array}{lcc}&\text { After Incentives }&\text { Before incentives }\\\text { Sample Size } & 14.00 & 12.00 \\\text { Sample Mean } & 2.85 & 2.61 \\\text { Sample Standard Deviation } & 0.40 & 0.35 \\\text { Sample Mode } & 2.50 & 3.00\end{array}$
a. Give the hypotheses.
b. Compute the test statistic.
c. At a 0.1 level of significance, test to determine whether the incentive programs have significantly increased the average grades.

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Definitions:

Positive Emphasis

The act of focusing on the positive aspects of a situation or piece of information, often to encourage or motivate.

Process Audit

An examination and evaluation of an organization's various processes to assess their efficiency and effectiveness.

Inaccurate Figures

Data or numerical information that is incorrect or does not accurately reflect the true situation or measurement.

Bias-Free Language

Communication that avoids words or phrases that discriminate against specific groups or imply partiality.