Withdrawal symptoms may occur when a person using a painkiller stops using it. For a certain, widely taken painkiller, withdrawal symptoms occur in 19% of people who have stopped using the painkiller. Suppose that we will take a random sample of 10 people who have stopped using the painkiller. Let P^ represent the proportion of people from the sample who experienced withdrawal symptoms. Consider the sampling distribution of the sample proportion P^ .

A)Find p^=

(the mean of the sampling distribution of the sample proportion).

B)

(b)Find p^=

(the standard deviation of the sampling distribution of the sample proportion).