A) Write the claim mathematically and identify Upper H 0 and Upper H Subscript a. (b) Find the critical value(s) and identify the rejection region(s). (c) Find the standardized test statistic. (d) Decide whether to reject or fail to reject the null hypothesis.
In a sample of 1713 home buyers, you find that 791 home buyers found their real estate agent through a friend. At alphaequals0.02, can you reject the claim that 47% of home buyers find their real estate agent through a friend?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

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

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.