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Suppose it is reported that 73 % of people subscribe to a cable or satellite television service. You decide to test this claim by randomly sampling 129 people and asking them if they subscribe to cable or satellite televsion.

Is the distribution of the sample proportion normal?

No, the distribution of sample proportions is not normal since $\displaystyle {n}{p}{\left({1}-{p}\right)}<{10}$
Yes, the distribution of sample proportions is normal since $\displaystyle {n}{p}{\left({1}-{p}\right)}\ge{10}$

What is the mean of the distribution of the sample proportion?

\displaystyle \mu_{\hat{{{p}}}}

=
What is the standard deviation of the distribution of the sample proportion?

\displaystyle \sigma_{\hat{{{p}}}}

=
Suppose we find from our sample that 66 subscribe to cable or satellite television service.
What is the sample proportion?

\displaystyle \hat{{{p}}}=

What is the probability that at least 66 subscribe to cable or satellite television service?

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