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 approve of the job thatthe sitting president is doing and is typically based on a random sample of registered voters where the sample size is the same week to week. Complete parts (a) and (b) below.b) A poll showed the approval rating to be 0.47 (47%). A second poll based on 2000 randomly selected voters showed that 882 approved of the job the president was doing. Do the results ofthe second poll indicate that the proportion of voters who approve of the job the president is doing is significantly lower than the original level? Explain. Assume the a = 0.05 level ofsignificance. Determine the P-value for this hypothesis test.P-value =(Round to three decimal places as needed.)

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Answered: Determine the P-value for this…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p=0.88 versus H₁: p0.88 n=500, x=430, α = 0.05 -... p= 0.86 (Type an integer or a decimal. Do not round.) Find the test statistic Zo- Zo=1.38 (Round to two decimal places as needed.) Find the P-value. P-value= (Round to three decimal places as needed.) Help me solve this View an example Type here to search O T R Get more help. E 6 (2 4 8 (? 4 Clear all 95°F Mostly sunny
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State whether the standardized test statistic t indicates that you should reject the null hypothesis. Explain. (a) t= 1.566 (b) t=0 (c) t= 1.497 (d) t= - 1.571 6=1.546 (a) For t= 1.566, should you reject or fail to reject the null hypothesis? O A. Fail to reject Ho, because t 1.546. O C. Reject Ho, because t> 1.546. O D. Reject Ho, because t 1.546. O C. Reject Ho, because t>1.546. O D. Fail to reject Ho, because t<1.546. (c) For t= 1.497, should you reject or fail to reject the null hypothesis? OA Fail tn raiert H. haraiea t<1 KAR Click to select your answer. esc @ # $ * 3 4 5 6 8 * C0
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Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. H0: p=0.87 versus H1: p≠0.87 n=500, x=430 , a=0.1
Test the hypothesis using the P-value approach. Be sure to verify the requirements of the test. Ho: p = 0.8 versus H₁: p > 0.8 n = 125; x = 105; α = 0.1 Click here to view page 1 of the table. Click here to view page 2 of the table. Calculate the test statistic, Zo. Zo (Round to two decimal places as needed.) Identify the P-value. = P-value = (Round to three decimal places as needed.) Choose the correct result of the hypothesis test for the P-value approach below. A. Do not reject the null hypothesis, because the P-value is less than a. B. Do not reject the null hypothesis, because the P-value is greater than α. C. Reject the null hypothesis, because the P-value is greater than a. O D. Reject the null hypothesis, because the P-value is less than α.

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Determine the P-value for this hypothesis test. P-value = (Round to three decimal places as needed.)