Question

Recent research has suggested that adolescent drinking behaviors have escalated. Assume national statistics presume that only 14% of adolescents aged 13-17 engage in alcohol consumption. A sample of 58 participants in this age range is collected and 13 participants report consuming alcohol on a regular basis.

1) Calculate the probability of observing the results witnessed in the sample.

2) Determine the mean and standard deviation for the distribution under the assumptions made in part A.

Answer #1

Researchers are concerned about the rise in drinking behaviors
among adolescents aged 13-17 in a particular community. Suppose the
research team estimates the prevalence of such behaviors is 17%. A
sample of 12 adolescents in this age range is collected. Let X
represent the number of individuals in the sample with presence of
this behavior. The probability of seeing no cases in a sample is
0.2627 0.0421 1 0.1069 None of the other choices represents a
suitable response
Researchers are...

Researchers are concerned about the rise in drinking behaviors
among adolescents aged 13-17 in a particular community. Suppose the
research team estimates the prevalence of such behaviors is 17%. A
sample of 12 adolescents in this age range is collected. Let X
represent the number of individuals in the sample with presence of
this behavior. The probability of seeing at least 2 cases in a
sample?

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