A Football Coach Claims That Players Can Increase Their Strength

question 125

Essay

A football coach claims that players can increase their strength by taking a certain supplement. To test thetheory, the coach randomly selects 9 athletes and gives them a strength test using a bench press. The results arelisted below. Thirty days later, after regular training using the supplement, they are tested again. The newresults are listed below. Test the claim that the supplement is effective in increasing the athletesʹ strength. Use α= 0.05. Assume that the distribution is normally distributed. $$\begin{array} { l | c c c c c c c c c } \text { Athlete } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 \\\hline \text { Before } & 215 & 240 & 188 & 212 & 275 & 260 & 225 & 200 & 185 \\\hline \text { After } & 225 & 245 & 188 & 210 & 282 & 275 & 230 & 195 & 190\end{array}$$

---

Definitions:

HR Metrics

Quantitative measures used to track and assess the efficiency and effectiveness of HR practices and outcomes in an organization.

Business Decisions

Business Decisions refer to the choices made by a company's management or leadership regarding its operations, strategies, and resources to achieve specific objectives.

Data Access

The ability or permission to retrieve, use, or manipulate data from a database or storage system.

Strategy Implementation

The practice of executing plans and strategies to achieve the desired goals and objectives of an organization.