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3 Question 32 Problem 4. Before the East presidentiai debates' 50% of registered votes indicated they were planning to vote for the incumbent president In a recent poll of 1200 registered voters alter the deba vote for the incumbent president Has there been a signif 1cant increase in the proportion of registered voters who are planning to vote for the incumbent president? Answer question 4.1 to question 4.12 regarding problem 4. Question 4.1. The sampie proportion in probiem 4 follows which of the following probability distribution? 0 Nomat distribution 0 tdlstriburion O Binomial distribution 0 Standard normal distrlbution 3 Question 33 Question 42. What is the standard deviation of sample proportion in order to come up an interval estimation of the proportion using the sample information in problem 4 (to, if we are not going know the last presidential debate result}? 3 Question 34 Question 4.3. If we would like to come up a condence interval estimation of proportion in problem 4 with 95% condence level, what would be the margin of error? 3 Question 35 Question 4.4. If we would like to come up a condence interval estimation of proportion in problem 4with 55% confidence leveL what would be the upper bound of the interval? \fQuestion 40 Question 4.9. What is the p-vatue of the test statistics [or problem 4? Question 41 Question 4.10. if u = 0.01 is used. what is mecrih'cal value? {for multiple values enter the positive one] Question 42 Question 4.11.1r'u = 0.01 is used. what is the conclusion of the hypothesis test for problem 4? o Fail m reject Lire Null minus. 0 Reject [he Null hypothesis. 0 Fail to IeJecI the Altemaiiue hypothes's. O Reiecl the Alternative hypothesis Question 43 Question 4.12. a = 0.01 is used, what is the interpretation of the hypothesis test conclusion in problem 4? 0 There is no signicant increase in the proportion of regislered voters who are planning to vole for the incumbent president 0 There is a signicant increase in the proportion of regislered voters who ate planning to vote for the incumbent president