A television sports commentator wants to estimate the proportion of Americans who follow professional football. We will determine what sample size should be obtained if he wants to be within 3 percentage points (use 0.03) with 99% confidence.

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Macy spent $36 on jeans. this was $12 less than twice what she spent on a shirt. which equation to solve this, 12x=36 2x=36-12 2x-12=36 12-2x=36