Instruction 19-4
an Agronomist Wants to Compare the Crop Yield

question 12

Multiple Choice

Instruction 19-4
An agronomist wants to compare the crop yield of three varieties of chickpea seeds. She plants all three varieties of the seeds on each of five different patches of fields. She then measures the crop yield in bushels per acre. Treating this as a randomised block design, the results are presented in the table that follows.
$$\begin{array} { | c | c | c | c | } \hline \text { Fields } & \text { Smith } & \text { Walsh } & \text { Trevor } \\\hline 1 & 11.1 & 19.0 & 14.6 \\\hline 2 & 13.5 & 18.0 & 15.7 \\\hline 3 & 15.3 & 19.8 & 16.8 \\\hline 4 & 14.6 & 19.6 & 16.7 \\\hline 5 & 9.8 & 16.6 & 15.2 \\\hline\end{array}$$ Below is the Minitab output of the Friedman rank test:
Friectman Test Yedd versus Varieties Felds
Friedmantest for Yield by Varieties blocked by Fields $S = 10.00 D F = 2 P = 0.007$

$\begin{array} { l l l l } \text { Varieties } & N & \text { EstMedian } & \text { Sum of Ranks } \\ & & & \\ \text { Smith } & 5 & 13.500 & 5.0 \\ \text { Trevor } & 5 & 15.667 & 10.0 \\ \text { Walsh } & 5 & 18.533 & 15.0 \end{array}$

$\text { Grand median }=15.900$

-Referring to Instruction 19-4,the null hypothesis for the Friedman rank test is

• A) M Smith = M Walsh = M Trevor .
• B)H 0 : M Field 1 = M Field 2 = M Field 3 = M Field 4 = M Field 5 .
• C)H 0 : \(\mu\) Field 1 = \(\mu\) Field 2 = \(\mu\) Field 3 =\(\mu\) Field 4 =\(\mu\) Field 5 .
• D) H 0 : \(\mu\) Smith = \(\mu\) Walsh = \(\mu\) Trevor .

Understand the complexity and dynamics of group decision-making processes.

Identify and explain the various decision-making methods, including Vroom's model.

Recognize the ethical considerations and justice issues within group decision-making.

Analyze the factors leading to group polarization and risky shift phenomena.

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Definitions:

Oxygenation

The process of adding oxygen to the body’s tissues, essential for cellular metabolism and energy production.

Blood Ph

The measure of the acidity or alkalinity of the blood, with a normal range being slightly alkaline at about 7.35 to 7.45 on the pH scale.

Carbon Dioxide

A gas without color or smell, generated through the combustion of carbon-based substances and the respiratory process, which naturally occurs in the atmosphere and is taken in by plants during the process of photosynthesis.

Thyroid Cartilage

The largest cartilage in the larynx, often more prominent in males and commonly known as the Adam's apple, offering protection and supporting vocal function.