In a large class of introductory Statistics students the professor has each person toss a coin 20 times and calculate the proportion of their tosses that were heads Complete parts a through d below The Independence Assumption The Success Failure Condition Type integers or decimals Do not round Use the graph below to describe the sampling distribution model satisfied because the sample proportions satisfied because np and nq which are both Range A Range B Range C p hat independent of each other since one sample proportion 10 Q Q C Range A which corresponds to of the proportions spans from Type integers or decimals rounded to four decimal places as needed Use ascending order d Explain how the sampling distribution model changes as the number of tosses increases of the proportions spans from and Range B which corresponds to of the proportions spans from and OA The sampling distribution model shifts to the right because the mean of the distribution will increase OB The sampling distribution model becomes narrower because the standard deviation of the distribution will decrease OC The sampling distribution model becomes wider because the standard deviation of the distribution will increase OD The sampling distribution model shifts to the left because the mean of the distribution will decrease and another sample proportion Range C which corresponds to 1 196