Concept explainers
To choose the correct option from the multiple choice question for the question.
Answer to Problem 87E
The option (c) is the correct option.
Explanation of Solution
Since they did not control for the time of the experiment, we have no way of knowing if the lower yield was caused by the different corn variety or other variables such as humidity, fertility of soil, inches of rain, amount of sunlight, etc. thus option (c) is correct option that is it is not reasonable because there may be other differences between the two years besides the corn variety.
Chapter 4 Solutions
PRACTICE OF STATISTICS F/AP EXAM
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