A Medical Researcher Wishes to Try Three Different Techniques to Lower

question 13

Multiple Choice

A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with highcholesterol levels. The subjects are randomly selected and assigned to one of three groups. Group 1 is givenmedication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of sixweeks, each subject?s cholesterol level is recorded. Find the critical value F-value to test the hypothesis thatthere is no difference among the means. Use ? = 0.05. $$\begin{array} { c c c } \hline \text { Group 1 }&\text { Group 2 }&\text { Group 3 } \\ \hline 9 & 8 & 6 \\12 & 2 & 12 \\11 & 3 & 4 \\15 & 5 & 4 \\13 & 4 & 9 \\8 & 0 & 8 \\\hline\end{array}$$

• A) 3.68
• B) 19.43
• C) 4.77
• D) 39.43

---

Definitions:

Minority Shareholder

An investor who owns less than 50% of a company's shares and therefore has less influence on corporate decisions compared to majority shareholders.

Majority Shareholder

A Majority Shareholder is an individual or entity that owns more than 50% of a company's shares, thereby having significant influence or control over company decisions.

Common And Preferred

Types of stock in a corporation; common stock typically grants voting rights, whereas preferred stock offers dividends priority.

Shareholders

Individuals or entities that own shares in a corporation and have potential voting rights and dividends.