Data from a Randomized Block Design Are Shown in the Following

question 75

Multiple Choice

Data from a randomized block design are shown in the following table. $\begin{array}{c}\quad\quad\quad\text { Treatment Levels }\\\begin{array}{l}\\\text {Block 1}\\\text {Block 2}\\\text {Block3}\end{array}\begin{array}{l}1 \\8 \\6 \\7 \end{array}\begin{array}{l}2 \\5 \\6 \\8 \end{array}\begin{array}{c}3 \\10 \\9 \\8 \end{array}\begin{array}{r}4\\7\\5\\9\end{array}\end{array}$

Using $\alpha$ = 0.05, the appropriate decision for the blocking effects is ________.

• A)reject the null hypothesis \(\mu\) ₁ \(\ge\) \(\mu\) ₂ \(\ge\) \(\mu\) ₃
• B)do not reject the null hypothesis \(\mu\) ₁ \(\neq\) \(\mu\) ₂ \(\neq\)\(\mu\) ₃
• C)do not reject the null hypothesis \(\mu\)₁=\(\mu\)₂=\(\mu\)₃
• D)reject the null hypothesis \(\mu\) ₁ \(\le\) \(\mu\) ₂ \(\le\) \(\mu\) ₃
• E)do nothing

---

Definitions:

Energy Efficiency

The practice of using less energy to provide the same service or achieving a task, leading to reduced energy consumption and expenses.

Sales Presentation

A formal meeting or pitch where a salesperson showcases a product or service to potential buyers, aiming to secure a sale.

Psychological Factors

Elements of human behavior such as motivation, perception, learning, beliefs, and attitudes that influence consumers' buying decisions.

Buying Decisions

The process by which consumers identify their needs, gather information, evaluate alternatives, and make the purchase decision.