One of the more popular statistics reported in the media is the president's job approval rating. The approval rating is

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One Of The More Popular Statistics Reported In The Media Is The President S Job Approval Rating The Approval Rating Is 1 (181.43 KiB) Viewed 21 times

One of the more popular statistics reported in the media is the president's job approval rating. The approval rating is reported as the proportion of the population who approxe of the job that the siting president is doing and is typically based on a random sample of registered vates where week. Complete parls (a) and (b) below. a) This proportion terids to fluctuate from week to week. Narre sortie reasons for the fluctuation in the statistic. Select all valid reasons below. DA The proportion could be changing due to a large change in the composition of the population. B. The proportion could be changing because people's studes are changing. C. The proportiori could be changing due to samping error, different people are in the sample. D. The proportion could he changing hecause the sampling size of the poll is changing. b) Apoll showed the approval rating to be 0.53 (53%). A second poll based on 2000 randomly selected votere showed that 1114 spprovec of the job the president was doing. Do the results of the second poll indicate that the proportion of voters who approve of the job the president is doin original level? Explain. Assume the = 0.05 level of significance Identify the null and alternative hypotheses for this test OA HOD=0.53 HD-0.53 OD. Hip-0.53 H:#0.53 OB. Hy <0.53 H: 0-0.53 O E HD-0.53 Hy: p<0.53 0 G, H, P =0.53 Hp0.53 OF HOP >0.53 HP-0.53 Find the less slalislic for this hypothesis lesi. z=Round to two decimal places as needed. Determine the P-value for this hypothesis tast. P.value={Round to three decimal places as needed.) Slale the conclusion for this hypothesis test. O A Reject H. There is sufficieril eviderice at the -0.05 level of significance to conclude that the proportion of volers who approve of the job the president is doing is significantly higher than the original level. OB. Reject Ho. There is not sufficient evidence at the c-0.05 level of significance to conclude that the proportion of voters who approve of the job the president is doing is significantly higher than the original level. OC. Do not reject Hy. There is not sufficient evidence at the x = 0.05 level of slanticance to conclude that the proportion of voters who approve of the job the president is doing is significantly higher than the original level. OD. Do not reject Hy. There is sufficient evidence at the = 0.05 level of significance to conclude that the proportion of voters who approve of the job the president is doing is algnificantly higher than the original level.