In: Advanced Math
An agricultural products manufacturer's research and development division is testing a newly developed wheat fertilizer.
Wheat is planted in several test areas (plots), which are in a controlled environment. Each area is randomly assigned a specific quantity of the fertilizer: either no fertilizer, a small amount, or a large amount of fertilizer.
The amount of water and the temperature are carefully controlled at specified levels and monitored for each test area: each area is maintained 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 per week.
After three months, the yield (i.e. the amount of wheat produced) for each group is measured and the results are compared
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