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Determining Experimental And Sample Designs Quiz 1 (11 MCQs)

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1. An independent research company wants to go door to door to survey people in the city of Fontana. The company decides to number all blocks within the city limit, randomly choose 50 blocks and survey all households on each selected block. This is an example of:
2. Identify the response variable in this scenario:The weeds in my garden are 2 inches taller today after the heavy rain we received last night.
3. To ensure that the experiment results are valid it is important that the experiment be _____
4. Identify the explanatory variable in this scenario:The weeds in my garden are 2 inches taller today after the heavy rain we received last night.
5. In an experiment the _____ group gets _____
6. To investigate whether standing up while studying affects performance in an algebra class, a teacher assigns half of the 30 students in his class to stand up while studying and assigns the other half to not stand up while studying. Which of the following best describes this plan?
7. The process of repeating an experiment under the same of similar conditions is called _____
8. Mrs. Horn samples her class by selecting every third person on her class list. Which type of sampling method is this?
9. Ms. Nichol samples her class by selecting all students sitting at group 1 and group 5 in her classroom. This sampling technique is called?
10. What type of sampling is this? A journalist asks his family how they feel about water pollution.
11. Identify the response variable in this scenario:A recent study compared the average number of hours of sleep each night each person reported as well as the number of cups of coffee they consumed that day.

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