SOLUTION: A random sample of 50 households was selected for a telephone survey. The key question asked was, “Do you or any member of your household own a cellular telephone that you can

Question 1159540: A random sample of 50 households was selected for
a telephone survey. The key question asked was, “Do you or
any member of your household own a cellular telephone that
you can use to access the Internet?” Of the 50 respondents,
20 said yes and 30 said no.
a. Determine the sample proportion, p, of households with
cellular telephones that can be used to access the Internet.
b. If the population proportion is 0.45, determine the standard error of the proportion.
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The sample proportion is 20/50 or 0.4
the SE is sqrt(p*((1-p)/n)=sqrt(0.45*0.55/50)=0.0680
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