A asked of friends if they thought the new Brand X that developed was effective. responded "yes." The used the results to write a TV advertisement claiming that " out of s prefer Brand X ." Is this a valid inference? Explain.
Use pencil and paper. Explain all of the factors that are necessary for an inference to be valid.
Is the inference valid? Explain. Choose the correct answer below.
A.
Yes, because s said yes out of who were asked.
B.
No, because s said yes out of who were asked.
C.
No, because the s asked are not a representative sample of the population of s.
D.
Yes, because the s asked are a representative sample of the population of
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