高校数学の質問スレ（医者・東大卒専用） Part438 (991ﾚｽ)

高校数学の質問スレ（医者・東大卒専用） Part438 http://rio2016.5ch.net/test/read.cgi/math/1723152147/

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841: １３２人目の素数さん [sage] 2025/05/23(金) 10:58:19.14 ID:or+7Cxzr # " Construct a Monte Carlo study that investigates how the probability of coverage depends on the sample size and true proportion value. In the study, let n be 10, 25, 50, and 100 and let p be .05, .25, and .50. Write an R function that has three inputs, n, p, and the number of Monte Carlo simulations m,and will output the estimate of the exact coverage probability. Implement your function using each combination of n and p and m = 1000 simulations. Describe how the actual probability of coverage of the traditional interval depends on the sample size and true proportion value. " f = \(n,p,m=1000){ y=rbinom(m,n,p) phat=y/n se=sqrt(phat*(1-phat)/n) lo=phat - qnorm(0.975)*se up=phat + qnorm(0.975)*se mean(lo < p & p < up) } f=Vectorize(f) n_values = c(10, 25, 50,100) p_values = c(0.05, 0.25, 0.5) set.seed(123) outer(n_values,p_values,f) http://rio2016.5ch.net/test/read.cgi/math/1723152147/841

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