Descriptive analysis revealed that 68% of students passed Test 3. Suppose a random sample of 19 students is selected and defined p as the proportion of students in the sample who passed Test 3. Determine the mean of the sampling distribution of p. Determine the standard deviation of the sampling distribution of p. Round the solution to six decimal places. Determine the probability that between 42.2% and 63.2% of a random sample of 19 students passed Test 3. Round the solution to four decimal places. P(0.422 0.562) =