Differences

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--- sampling_distribution_in_r [2024/03/20 13:55] – [Sampling distribution in R e.g. 1] hkimscil
+++ sampling_distribution_in_r [2024/03/20 14:15] (current) – [Sampling distribution in R e.g. 1] hkimscil
@@ Line 90: / Line 90: @@
 <code>
 # n =1600 일 경우에
-# sample의 평균이 101.5보다 작을
+# sample의 평균이 100.15보다 작을
 # 확률은 어떻게 구해야 할까?
@@ Line 100: / Line 100: @@
 # 이것을 standard error라고 부른다
 # 따라서
-pnorm(101.5, mean(ajstu), sqrt(var(ajstu)/n.1600))
+se.1600 <- sqrt(var(ajstu)/n.1600)
+pnorm(100.15, mean(ajstu), se.1600)
 </code>