Mathematics, 02.06.2021 04:30, nihadsalim10
Suppose that a reputable research firm conducts a poll of US adults, asking "do you agree with issue A?" Among 561 Democrats, 253 of them answer "yes." Among 602 Republicans, 304 of them answer "yes." You are interested in testing the claim that the proportion of Republicans who agree with issue A is greater than the proportion of Democrats who agree with issue A. (a) What are the null and alternative hypotheses? Let P, andp2 denote the proportion of De- mocrats and Republicans respectively who agree with issue A. (b) Are the requirements met to perform the hypothesis test? Verify them. (c) What is the P-Value? At the 0.05 level of significance, do we reject or fail to reject the null hypothesis? Can we support the claim that a greater proportion of Republicans agree with issue A versus Democrats? (d) Suppose that the actual population data varies from the sample data, and the result you obtained in your hypothesis test is not reflective of the population. Did you make a type I or type II error? Explain.
Answers: 2
Mathematics, 21.06.2019 17:00, ruslffdr
Arestaurant offers a $12 dinner special that has 5 choices for an appetizer, 12 choices for an entrée, and 4 choices for a dessert. how many different meals are available when you select an appetizer, an entrée, and a dessert? a meal can be chosen in nothing ways. (type a whole number.)
Answers: 1
Mathematics, 22.06.2019 02:40, blake4033
An oil exploration company currently has two active projects, one in asia and the other in europe. let a be the event that the asian project is successful and b be the event that the european project is successful. suppose that a and b are independent events with p(a) = 0.2 and p(b) = 0.8. (a) if the asian project is not successful, what is the probability that the european project is also not successful? (b) what is the probability that at least one of the two projects will be successful? (c) given that at least one of the two projects is successful, what is the probability that only the asian project is successful? (round your answer to three decimal places.)
Answers: 3
Suppose that a reputable research firm conducts a poll of US adults, asking "do you agree with issue...
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