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Author Question: Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group ... (Read 194 times)

laurencescou

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on: Jul 24, 2018
Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group would take Vitamin C for two weeks, while the second group would take a placebo. At the end of the study, the proportion of colds in the two groups will be compared. What is the explanatory variable in the study?
 a. Getting a cold (or not)
  b. Taking Vitamin C (or a Placebo)
  c. Getting 8 hours of sleep a night (or not)
  d. Exposure to other people with colds (or not)

Question 2

Twenty volunteers were assigned at random to one of two groups (10 people in each group). One group would take Vitamin C for two weeks, while the second group would take a placebo. At the end of the study, the proportion of colds in the two groups will be compared. What is the response variable in the study?
 a. Getting a cold (or not)
  b. Taking Vitamin C (or a Placebo)
  c. Getting 8 hours of sleep a night (or not)
  d. Exposure to other people with colds (or not)


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macagn

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Reply #1 on: Jul 24, 2018
Answer to Question 1

B

Answer to Question 2

A


laurencescou

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Reply 2 on: Jul 24, 2018
Excellent

31809pancho

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Reply 3 on: Yesterday
Gracias!

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