Question

Question 21 3 pts Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political news was reported fairly. The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly. Suppose we want to construct a 99% confidence interval. What is the Bound of Error (BOE)? 0.0309 2.576 0.0407 0.4293 to 5107

Answer 1

121) no 1000; X=470 p. x 470 = 0.47 n 1000 Bound of error: z*l er m2 - 958 0.47X0.53 1000 0.0407 2) n = 1000 = 470 o = x = 470 looo 0.47 To test Ho: P-0.5 VS Hib< 0.5 Test statistic, pop IPCI-P n 0.47-0.50 10.5X0.5 J 1000 -0.03 0.0158 z = -1.8987 z-critical = - 1.645 (trom za table I would reject Hosp0.5 because the test statistic is less than -1.645

standard eroor pll-P) 10.45X0.55 2266