Consider an x distribution with standard deviation O = 39. (For each answer, enter an exact number.) (a) If specifications for a research project require the standard error of the corresponding distribution to be 3, how large does the sample size need to be? ( b ) If specifications for a research project require the standard error of the corresponding distribution to be 1, how large does the sample size need to be? n = Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Enter a number. Round your answer to four decimal places.) H = 8; 0 = 6 P(5