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Author Question: In an observational study, the researcher exerts strict control over the units in the study. A) ... (Read 58 times)

genevieve1028

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on: Jun 24, 2018
In an observational study, the researcher exerts strict control over the units in the study.
 
  A) True B) False

Question 2

Three female students and two male students are to be chosen from a group of 30 female students and 20 male students. Does this sample of five students satisfy the conditions to be a random sample of the 50 students in the group? Explain.
 
  Answer the question True or False.
 
  What will be an ideal response?


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SAUXC

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

B

Answer to Question 2

No; not every sample of 5 students from the group has an equal chance of selection; for example, a sample consisting of 5 males has no chance of being selected.


genevieve1028

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Reply 2 on: Jun 24, 2018
Wow, this really help

gcook

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Reply 3 on: Yesterday
Excellent

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