R ile Kategorik Verilerde Çıkarım
Andrew Bray
Assistant Professor of Statistics at Reed College
Sonuç: Mutlu Amerikalıların gerçek oranı 0,705 ile 0,841 arasındadır.
Güvenli derken neyi kastediyoruz?
ds1 <- filter(gss, year == 2016)p_hat <- ds1 %>% summarize(mean(happy == "HAPPY")) %>% pull()SE <- ds1 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7073114 0.8393553











ds2 <- filter(gss, year == 2014)p_hat <- ds1 %>% summarize(mean(happy == "HAPPY")) %>% pull()SE <- ds1 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.8348831 0.9384503

ds3 <- filter(gss, year == 2012)p_hat <- ds1 %>% summarize(mean(happy == "HAPPY")) %>% pull()SE <- ds1 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

ds3 <- filter(gss, year == 2012) p_hat <- ds3 %>% summarize(mean(happy == "HAPPY")) %>% pull() SE <- ds3 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

ds3 <- filter(gss, year == 2012) p_hat <- ds3 %>% summarize(mean(happy == "HAPPY")) %>% pull() SE <- ds3 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

ds3 <- filter(gss, year == 2012) p_hat <- ds3 %>% summarize(mean(happy == "HAPPY")) %>% pull() SE <- ds3 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

ds3 <- filter(gss, year == 2012) p_hat <- ds3 %>% summarize(mean(happy == "HAPPY")) %>% pull() SE <- ds3 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

ds3 <- filter(gss, year == 2012) p_hat <- ds3 %>% summarize(mean(happy == "HAPPY")) %>% pull() SE <- ds3 %>% specify(response = happy, success = "HAPPY") %>% generate(reps = 500, type = "bootstrap") %>% calculate(stat = "prop") %>% summarize(sd(stat)) %>% pull()c(p_hat - 2 * SE, p_hat + 2 * SE)
0.7626359 0.8906974

Yorum: “Mutlu Amerikalıların gerçek oranının %95 güvenle 0,705 ile 0,841 arasında olduğunu düşünüyoruz.”
Aralık genişliğini etkileyenler
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