TABLE 11-10
an Agronomist Wants to Compare the Crop Yield

question 31

Short Answer

TABLE 11-10
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

$$\begin{array} { c r r r } \text { Trial } & \text { Smith } & \text { Walsh } & \text { Trevor } \\\hline 1 & 11.1 & 19.0 & 14.6 \\2 & 13.5 & 18.0 & 15.7 \\3 & 15.3 & 19.8 & 16.8 \\4 & 14.6 & 19.6 & 16.7 \\5 & 9.8 & 16.6 & 15.2\end{array}$$
-Referring to Table 11-7, the agronomist decided to compare the 3 treatment means by using the Tukey-Kramer procedure with an overall level of significance of 0.01. There are_____pairwise comparisons that can be made.

---

Definitions:

Circadian Rhythm

The natural, internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Hormone Levels

refer to the concentration of hormones present in the bloodstream, which can affect bodily functions and mood.

Neurotransmitters

Chemical messengers that transmit signals across synapses between neurons in the nervous system.

Hebb's Theory

A theory in neuroscience proposing that neurons which fire together wire together, emphasizing the connection between neurons as the basis for learning.