Instruction 11-7
an Agronomist Wants to Compare the Crop Yield

question 107

Multiple Choice

Instruction 11-7
An agronomist wants to compare the crop yield of three varieties of chickpea seeds. She plants 15 fields, five with each variety. She then measures the crop yield in bushels per acre. Treating this as a completely randomised design, the results are presented in the table that follows.
$\begin{array}{rrrr}\text { Trial}& \text { Smith }& \text { Walsh}& \text { Trevor }\\\hline1 & 11.1 & 19.0 & 14.6 \\2 & 13.5 & 18.0 & 15.7 \\3 & 15.3 & 19.8 & 16.8 \\4 & 14.6 & 19.6 & 16.7 \\5 & 9.8 & 16.6 & 15.2\end{array}$
-Referring to Instruction 11-7,what is the null hypothesis for testing the block effects?

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

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Definitions:

Periodic Table

Table that organizes all the chemical elements according to the element’s atomic number and electron orbitals.

Cu

The chemical symbol for copper, a ductile metal with very high thermal and electrical conductivity.

Ag

The chemical symbol for silver, a precious metal with high thermal and electrical conductivity.

Au

The chemical symbol for gold, a precious metal with high conductivity, resistance to corrosion, and extensive use in electronics, jewelry, and as a monetary standard.