Doctors recommend having a total cholesterol level below 200 space m g divided by d L and consider anything greater than that value to be too high. Suppose that the population standard deviation of cholesterol level among all people is 64 space m g divided by d L and that a sample of 36 people is taken whose mean cholesterol level is 225 space m g divided by d L. If we were looking for evidence that the population mean cholesterol level - or mu - is too high, what would our Null Hypothesis be in terms of mu? mu equals 225 space m g divided by d L mu less than 225 space m g divided by d L mu equals 200 space m g divided by d L mu greater than 200 space m g divided by d L