Chosen at random, 500 rural and 500 urban persons age 65 or older were asked about their health and experience with prescription drugs. would this be random sampling, simple random sampling, convenience sampling, stratified sampling, or cluster sampling? and discuss potential sources of bias (if any).

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Explain why the factor 1.5 is broke. into two numbers in the model.

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.