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

question 109

True/False

Instruction 11-11
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.
$$\begin{array} { | l | l | l | l | } \hline\text { Fields } & \text { Smith } & \text { Walsh } & \text { Trevor } \\\hline 1 & 11.1 & 19.0 & 14.6 \\\hline 2 & 13.5 & 18.0 & 15.7 \\\hline 3 & 15.3 & 19.8 & 16.8 \\\hline 4 & 14.6 & 19.6 & 16.7 \\\hline 5 & 9.8 & 16.6 & 15.2 \\\hline\end{array}$$

-Referring to Instruction 11-11,the test is valid only if the population of crop yields has the same variance for the three varieties.

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Definitions:

Stratified Random Sampling

A method of sampling that involves dividing a population into smaller groups, or strata, and randomly selecting samples from each stratum.

Internet Sampling

A method of selecting participants for research studies through online platforms or digital methods.

Internet Sampling Frame

A list or database used for identifying and selecting participants for a survey or study conducted via the Internet.

Inaccurate Information

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