Consider the approximately normal population of heights of male college students with mean u = 67 inches and standard deviation of o = 3.2 inches. A random sample of 11 heights is obtained. (e) Find P(x > 65). (Round your answer to four decimal places.) 0.734 (f) Find P(x < 63). (Round your answer to four decimal places.) .5

Use the formula to find the standard error of the distribution of differences in sample means, I1 – X2. Samples of size 110 from Population 1 with mean 82 and standard deviation 14 and samples of size 80 from Population 2 with mean 76 and standard deviation 17 Round your answer for the standard error to two decimal places. standard error = i

Let x = red blood cell (RBC) count in millions per cubic millimeter of whole blood. For healthy females, x has an approximately normal distribution with mean ? = 5.4 and standard deviation ? = 0.6.   a) Convert the x interval, 4.5 < x, to a z interval. (Round your answer to two decimal places.)  _______ < z b) Convert the x interval, x < 4.2, to a z interval. (Round your answer to two decimal places.) z < ______ c) Convert the x interval, 4.0 < x < 5.5, to a z interval. (Round your answers to two decimal places.) ________ < z < _______

Q.4 F