A Test on World History Was Given to a Group

question 187

Short Answer

A test on world history was given to a group of individuals before and also after a film on the history of the world was presented. The results are given below. We want to determine if the film significantly increased the test scores. For the following matched samples, let the difference "d" be d = after - before.)
$\begin{array}{lll}\text { Individual }&\text { After }&\text { Befor }\\1 & 92 & 86 \\2 & 86 & 88 \\3 & 89 & 84 \\4 & 90 & 90 \\5 & 93 & 85 \\6 & 88 & 90 \\7 & 97 & 91\end{array}$
a. Give the hypotheses for this problem.
b. Compute the test statistic.
c. At 95% confidence, test the hypotheses.

Understand the health implications of sexually transmitted infections and prevention methods.

Recognize the milestones and characteristics of physical and cognitive development in adulthood.

Identify the characteristics of moral development according to Kohlberg's theory and recognize the stages where rule obedience is based on punishment avoidance.

Understand the challenges and changes during menopause and identify the average age of onset.

---

Definitions:

Team Viability

The capability of a team to work effectively over time, maintaining its functionality and performance despite facing challenges and conflicts.

Effective Teams

Groups of individuals working together in a cohesive manner towards a common goal, characterized by clear communication, collaboration, and mutual respect.

Self-managing Teams

Groups of employees who are responsible for managing and controlling all or most aspects of their own work.

Self-directed Work Teams

Groups of employees who manage their own work and processes without direct supervision, often responsible for making business decisions related to their activities.