Use the Wilcoxon Signed -Ranks Test to Test the Claim

question 41

Essay

Use the Wilcoxon signed -ranks test to test the claim that the matched pairs have differences that come from a population with a median equal to zero. Eleven runners are timed at the 100-
meter dash and are timed again one month later after following a new training program. The
times (in seconds)are shown in the table. Use Wilcoxon's signed-ranks test and a significance
level of 0.05 to test the claim that the training has no effect on the times. $$\begin{array} { l l l l l l l l l l l l } \text { Before } & 12.1 & 12.4 & 11.7 & 11.5 & 11.0 & 11.8 & 12.3 & 10.8 & 12.6 & 12.7 & 10.7 \\\hline \text { After } & 11.9 & 12.4 & 11.8 & 11.4 & 11.2 & 11.5 & 12.0 & 10.9 & 12.0 & 12.2 & 11.1\end{array}$$

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Definitions:

Behavioural Description Interview

A job interview technique where candidates are asked to describe past behavior in specific situations, which can predict future behavior in similar situations.

Panel Interviews

A method of interviewing where the candidate is questioned by multiple interviewers simultaneously, often used to assess compatibility with the team or organization.

Reliability

The degree to which an assessment or measurement tool yields consistent and stable results over multiple instances or applications.

Situational Interview

A job interview technique where candidates are asked to describe how they would handle specific workplace situations.