TABLE 11-7
an Agronomist Wants to Compare the Crop

question 24

True/False

TABLE 11-7
An agronomist wants to compare the crop yield of 3 varieties of chickpea seeds. She plants 15 fields, 5 with each variety. She then measures the crop yield in bushels per acre. Treating this as a completely randomized design, the results are presented in the table that follows.
$$\begin{array} { c r r r } \text { Trial } & \text { Smith } & \text { Walsh } & \text { Trevor } \\\hline 1 & 11.1 & 19.0 & 14.6 \\2 & 13.5 & 18.0 & 15.7 \\3 & 15.3 & 19.8 & 16.8 \\4 & 14.6 & 19.6 & 16.7 \\5 & 9.8 & 16.6 & 15.2\end{array}$$
-Referring to Table 11-7, the test is valid only if the population of crop yields has the same variance for the 3 varieties.

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Definitions:

Cognitive Development

The process of growth and change in intellectual capabilities, influencing how an individual understands and interacts with the world.

Echoic Memory

A component of sensory memory that allows individuals to retain audio information for short periods after the original sounds have ended.

Iconic Memory

The visual sensory memory register pertaining to the visual domain and a fast-decaying store of visual information.

Sensory Memory

The shortest-term element of memory, allowing the retention of impressions of sensory information after the original stimuli have ended.