Diastolic blood pressure is a measure of the pressure when arteries rest between heartbeats. Suppose diastolic blood pressure levels in women are normally distributed with a mean of 70.6 mm Hg and a standard deviation of 8.6 mm Hg. Complete parts (a) and (b) below. a. Adiastolic blood pressure level above 90 mm Hg is considered to be hypertension. What percentage of women have hypertension? :|% (Round to two decimal places as needed.) b. If we randomly collect samples of women with 25 in each sample, what percentage of those samples have a mean above 90 mm Hg? D% (Round to two decimal places as needed.)