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amorenextdoor
26.11.2019 •
Mathematics
Researchers in a certain country investigated how having daughters influences voting on women's issues by members of the federal government. the researchers use voting records of each member of the federal government to compute an index score, where higher scores indicate more favorable voting for women's rights. the researchers modeled the index score (y) as a function of the number of daughters (x) a voting member has. data collected for the 455 members of the federal government last year were used to fit the straight-line model, e(y) = beta_0 + beta_1 x. complete parts a through c below. a. if it is true that having daughters influences voting on women's issues, will the sign of beta_1 be positive or negative? explain. positive, because if the claim is true, then index score would increase as the number of daughters increases. b. the following statistics were reported in the article: beta_1 = 0.24 and s_beta_1 = 0.39. find a 99% confidence interval for beta_1. a 99% confidence interval is (round to three decimal places as needed.) c. use the result, part b, to make an inference about the model. since the interval (1) there is (2) evidence to conclude that having daughters influences voting on women's issues. contains only positive values insufficient contains zero sufficient
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Ответ:
1) 38
2) 19
3) 1134
Step-by-step explanation: