An artide stated, Surveys tell us that more than half of America's college graduates are avid readers of mystery novels. Let denote the actual proportion of college graduates who are avid readers of mystery novels. Consider a sample proportion that is based on a random sample of 15 college graduates. (-0.6, what are the mean value and standard deviation of Cound your answers to four decimal places mean standard deviation 1 p = 0.7, what are the mean value and standard deviation of (Round your answers to four decimal places) men standard deviation Does have approximately a normal distribution in both cases? Explan Yes, because in both cases > 10 and {1 - p) > 10 No, because in both cases no 10 or 1-p) < 10 No, because when 0.6, p < 10 No, because when - 0.7, n. 10 (b) Calculate th> 0.7) for -0.6. (Round your answer to four decimal places Calculate 20.7) for p -0.7. (c) Without doing any calculations, how do you think the probabilities in Part() would change in were 390 rather than 2157 When -0.6, the PP 20.7) would decrease if the sample size was 390 rather than 215. When p = 0.7, the P 0.7) would remain the same if the samplestre was 390 rather than 215 When - 06, the PLA 20.7) would remain the same if the sample size was 390 rather than 215. When p = 0.7, the p > 0.7) would remain the same the samples was 290 rather than 215 When p = 0.6, the PLP 0.7) would decrease if the sample size was 390 rather than 215. When p0.7, the PG 0.7) would decrease if the sample size was 390 rather than 215 When p=0.6. the Pp > 0.7) would remain the same if the sample size was 390 rather than 215. When p0.7, the PC 20.7) would decrease the sample size is 390 rather than 215