Question

Question 22 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 determine if the proportion for the U.S. is below.50 for an alpha level of .05. What is conclusion of my test? I would reject Ho: P=5 because the test statistic is less than - 1.645 I would fail to reject Ho: P=.5 because the test statistic is greater than -1.96 I would fail to reject Ho: P=5 because the p-value is greater than .05 I would reject Ho: P= 5 because the test statistic is greater than 1.645

Answer 1

solution! Given that, na 1ooo x=470 x= 0.05 0.47 1000 po=0.50 Hoip=0.50 Haip <0.50 This is Left -tailed test Test statistic, 2= hapo Roll-Pol za 0.47 -0.50 0.50(1-0-50 1000 za :-- . 897 the test statistic is -1. 897

z = -1.897 <Zc=-1.645 It is then concluded that the null hypothesis is rejected. I would reject Ho & P 20.50 because the test statistic L is less than -1.645.