REPORTING AND THESIS WRITING
DETERMINING EXPERIMENTAL AND SAMPLE DESIGNS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A botanist wants to test whether sunflowers in three different temperature environments-cold, medium, and hot-can produce more or fewer glucose. The 300 sunflowers seeds were each given an equal volume of water (500 mL), each separated randomly into three identical greenhouses. The results were collected. Which of the following is TRUE?
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The experiment is flawed because the 500 mL of water was not assigned randomly.
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The experiment is flawed because the sunflower seeds were not blocked.
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The explanatory variables are the glucose levels and the temperature of the environments.
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The situation described is an observational study because the botanist did not randomly select the sunflower seeds.
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The results of the study are conclusive only on the basis of cause and effect.
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Explanation:
There is 1 question to complete.