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Statistics and probability
Course: Statistics and probability > Unit 6
Lesson 5: ExperimentsThe language of experiments
Karina wants to determine if kale consumption has an effect on blood pressure. She recruits households and randomly assigns each household to either a kale-free diet plan or a kale-based diet. At the end of two months, she plans to record the original and final blood pressures for members of each household.
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- Why wouldn't the answer for problem 4 be the members of each household?(33 votes)
- The members of each household receive the same diet, but each household could have a different diet. Since the diet is consistent in the household, the household is the experimental unit.(68 votes)
- Words are slippery. The last question expects as correct answer the households, not their members. Makes me scratch my head and and ironically conclude: "Aha! So it is the households who eat (or not) the kale, not the household members".(9 votes)
- That is a funny point, but the household is the whole of the household members. We were comparing different households as a whole and not a households individual members.
Hope this helps,
- Convenient Colleague(9 votes)
- why didnt seattle just run the ball..(11 votes)
- It was the right call but Malcolm Butler just made a great play.(4 votes)
- If the household members are not the experimental units, then what are they?(9 votes)
- What can be the possible source of bias here ?(4 votes)
- what does confounding mean(2 votes)
- number 4 should it be all of the people in the house and not just say it was a household?(2 votes)
- Isn't number 4 each individual member?(1 vote)
- this was very easy(1 vote)
- I am confuse about word question like kale based on kale diet that word kale(0 votes)
- Kale is a type of cabbage that's eaten. Just Google it.(3 votes)