Answer :
0.16 will be the Sample Proportion / Parameter.
Given info,
A randomly selected sample of 1,000 college students was asked whether they had ever used the drug Ecstasy. Sixteen percent (16% or 0.16) of the 1,000 students surveyed said they had.
To know which one of the following statements about the number, 0.16 is correct,
This value, 16% = 0.16 would be the sample proportion,
[tex]\hat p[/tex], since it originated from the sample.
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