IDNLearn.com makes it easy to get reliable answers from knowledgeable individuals. Discover the information you need from our experienced professionals who provide accurate and reliable answers to all your questions.

as reported by a sample study from the US national Center for health statistics, the main HDL cortisol level of females 20 to 29 years old is 53.0 and the population standard deviation is known to be 13.4 find the margin of air for a 99% confidence and a bill for the meaning of a sample of 50 women