The Following Data Represent the Test Scores of Eight Students

question 112

Essay

The following data represent the test scores of eight students on a statistics test before and after attending extra help sessions for the test. $$\begin{array} { | l | c | c | } \hline \text { Student } & \text { Before } & \text { After } \\\hline \text { Abby } & 82 & 90 \\\hline \text { Brenda } & 75 & 86 \\\hline \text { Carmen } & 90 & 90 \\\hline \text { David } & 68 & 62 \\\hline \text { Edward } & 87 & 89 \\\hline \text { Frank } & 73 & 75 \\\hline \text { Gill } & 81 & 78 \\\hline \text { Heidi } & 92 & 98 \\\hline\end{array}$$ Uses the Wilcoxon signed rank sum test to determine at the 5% significance level whether the extra help sessions have been effective.

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Definitions:

Social Media Listening

The process of monitoring and analyzing online conversations and mentions about a brand, topic, or industry on social media platforms.

Observational Research

A research method involving the systematic observation and documentation of behaviors or phenomena as they occur in their natural settings.

Sentiment

The emotional tone or attitude expressed in a piece of text, speech, or other forms of communication.

Secondary Research

The process of collecting and analyzing existing data that was gathered by others, as opposed to conducting new or primary research.