According to a poll, 55% of Americans do not know that GOP stands for Grand Old Party (Time, October 17, 2011). Assume that this percentage is true for the current population of Americans. Let p be...

Extracted text: According to a poll, 55% of Americans do not know that GOP stands for Grand Old Party (Time, October 17, 2011). Assume that this percentage is true for the current population of Americans. Let p be the proportion in a random sample of 975 Americans who do not know that GÓP stands for Grand Old Party. Find the mean and standard deviation of the sampling distribution of p and describe its shape. Round your answer for the standard deviation to four decimal places. i i The sampling distribution of p is