211 Final Exam Questions And Answers Latest Update 2024 (Verified Solutions)

11. Even though Puerto Rico is a commonwealth of the United States, there are many cultural differences between the states on the continent and the island of Puerto Rico. These differences include the way consumers handle problems with purchases. Two researchers surveyed owners of DVD players in the Northeast United States and in PR. They asked those who had experienced problems with their DVD players whether they complained. The results are given in the table below. complained US PR Total No 94 33 127 expected 103.4 23.6 127.0 Yes 330 64 394 expected 320.6 73.4 394.0 Total 424 97 521 expected total 424.0 97.0 521 a.) among the PR, what proportion did not complain? {Ans: 33/97 = .34}2b The smaller the p-value, the stronger the evidence against the null hypothesis provided by the data. {Ans: True}Suppose that p1 = .5, n1 = 30, p2 = .2, n2 = 30 d.) Suppose the sample sizes were multiplied by 4. What effect does multiplying the sample sizes by 4 have on the standard deviation? {Ans: standard deviation of the difference = .058 is half of the standard deviation of the smaller sampler sizes.}11. Even though Puerto Rico is a