An agricultural products manufacturer's research and developmentdivision is testing a newly developed wheat fertilizer.
Wheat is planted in several test areas (plots), which are in acontrolled environment. Each area is randomly assigned a specificquantity of the fertilizer: either no fertilizer, a small amount,or a large amount of fertilizer.
The amount of water and the temperature are carefully controlledat specified levels and monitored for each test area: each area ismaintained at either 78 °F or 71 °F for the duration of the test.Each area is administered either 2, 4 or 8 litres of water perweek.
After three months, the yield (i.e. the amount of wheatproduced) for each group is measured and the results arecompared
a)This testing procedure is an example of a:
A. completely randomized design experiment
B. randomized block design experiment
C. matched pairs experiment
b)The unit of this experiment is the:
A. fertilizer
B. wheat
c)The factors of this experiment are:
A. season
B. application of fertilizer
C. sunlight
D. temperature
E. water
F. time period
d)Identify the response in the experiment:
A. amount of fertilizer
B. yield
