Wilmu MAT308 Week 1 Discussion Latest 2021 June
MAT308 Inferential Statistics
Week 1 Discussion
Bias in Studies
Choose EITHER Option A or Option B for your initial post. Please respond to two or more of the posts by Sunday night. At least one of those responses should be to a person who picked a different option than you did.
Option A:
A survey is conducted to determine the proportion of young adults who earn less than $15,000. Two sampling methods are being considered. Method A involves standing on a downtown street corner and randomly picking several young adults to interview every 10 minutes during a 12-hour period. Method B involves posting the question on several popular young adult Websites; the viewer simply has to click on one of two possible answers to participate.
State a possible source of bias for Method A, and describe how it may affect the results.
State a possible source of bias for Method B, and describe how it may affect the results.
Option B:
Does cell phone radiation increase a person’s risk of getting cancer? How can an observational study be performed?
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