"Cramming" Is a Technique Often Used by Students to Prepare

question 18

Multiple Choice

"Cramming" is a technique often used by students to prepare for exams,in which they study for extended hours only a few days before the exams.Often students drink caffeinated beverages to help them stay awake while cramming for exams.Five students were randomly selected and asked to drink highly caffeinated beverages before their first midterm exam and then drink only water before their second midterm exam in the same subject.The difference of the scores (midterm 2 - midterm 1) is shown below for the five students. Using the normal approximation with the continuity correction,compute the P-value used to test the null hypothesis of no difference against the alternative hypothesis that midterm 2 scores are systematically higher than midterm 1 scores using the Wilcoxon signed rank test statistic.Using a significance level of .05,is there evidence against the null hypothesis of no systematic difference in the scores?

• A)Yes
• B)No

---

Definitions:

Low Cost

A characteristic of goods, services, or processes that require minimal financial expenditure to acquire, maintain, or produce.

Internal Supply

Refers to the resources, capabilities, and competencies that are available within an organization, which can be utilized to achieve strategic objectives.

Retrained

The process of teaching employees new skills or refreshing their existing skills to meet the current demands of their job or prepare for new job roles.

HR Supply

The availability of qualified candidates, both internally and externally, to meet the human resources needs of an organization.