TABLE 12-19
an Agronomist Wants to Compare the Crop Yield

question 48

True/False

TABLE 12-19
An agronomist wants to compare the crop yield of 3 varieties of chickpea seeds. She plants all 3 varieties of the seeds on each of 5 different patches of fields. She then measures the crop yield in bushels per acre. Treating this as a randomized block design, the results are presented in the table that follows.

$$\begin{array} { l l l l } \text { Fields } & \text { Smith } & \text { Walsh } & \text { Trevor } \\1 & 11.1 & 19.0 & 14.6 \\2 & 13.5 & 18.0 & 15.7 \\3 & 15.3 & 19.8 & 16.8 \\4 & 14.6 & 19.6 & 16.7 \\5 & 9.8 & 16.6 & 15.2\end{array}$$
Below is the Minitab output of the Friedman rank test:

Friedman Test: Yield versus Varieties, Fields

Friedman test for Yield by Varieties blocked by Fields
$\mathrm{s}=$$10.00$ $\quad$$\mathrm{DF}=2 \quad \mathrm{P}=0.007$

$\begin{array}{llcc} & \text { Est } & \text { Sum of } \\ \text { Varieties } & \text { N } & \text { Median } & \text { Ranks } \\ \text { Smith } & 5 & 13.500 & 5.0 \\ \text { Trevor } & 5 & 15.667 & 10.0 \\ \text { Walsh } & 5 & 18.533 & 15.0 \\\\ \text { Grand median= } & 15.900\end{array}$

-Referring to Table 12-19, the decision made at a 0.01 level of significance on the Friedman rank test for the difference in medians implies that all 3 medians are significantly different.

Recognize the physiological bases for differences in cognitive and emotional processing among individuals.

Explain the concept of brain plasticity in relation to recovery from injury.

Describe how the nervous system maintains bodily functions and homeostasis.

Understand the concept of the time value of money and its exclusion in average accounting return (AAR) calculations.

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Definitions:

Robinson-Patman Act

A United States federal law aimed at preventing anticompetitive practices by producers, specifically price discrimination.

Price Discrimination

A pricing strategy where a seller charges different prices for the same product or service to different customers, based on factors like location, age, or purchase quantity.

Sunk Cost

A cost that has already been incurred and cannot be recovered.

Intermediate Product

A product that is a result of a process but is also used as an input in the production of a final or finished product.