Calculate and label the two sample proportions separately and round each value to three decimal places. Next, calculate the difference between these sample proportions of correct guesses of regular Coke and regular Pepsi by subtracting (Coke - Pepsi). Type these calculations, label each of them, and present each of these values in your solutions document. b) What is the parameter of interest? Use words and symbol(s) in context in your answer. Define any subscripts that you use