Are Europeans getting fatter? Researchers interested in this question take a random sample of 500 people and record an average weight of 190 pounds an

Are Europeans getting fatter? Researchers interested in this question take a random sample of 500 people and record an average weight of 190 pounds and a standard deviation of 25 pounds. Ten years ago, the mean weight was 185 pounds.What are the null and alternative hypotheses?

Posted in Uncategorized