Suppose (10, 42) is a 99% confidence interval estimate for a population mean . a) The point estimate a = b) The margin of error = c) Which of the following are true statements? 1. There is a 0.99 probability that u is between 10 and 42. 11. There's a 99% chance that any particular value in the population will fall between 10 and 42. Ill. 99% of confidence intervals constructed in this population will have a lower limit of 10 and an upper limit of 42. IV. If 99% confidence intervals are calculated from all possible samples of the given size, H is expected to be in 99% of these intervals. O l and IV O I and II O IV only O ll and Ill O Ill only O I and Ill