예제: 중앙값의 신뢰 구간

함수 > 통계 > 기술 통계 > 예제: 중앙값의 신뢰 구간

예제: 중앙값의 신뢰 구간

모집단 분산을 알 수 없는 경우 정규 모집단 평균을 추정하기 위해 신뢰 구간을 계산합니다.

1. 표본 데이터 집합을 정의합니다.

2. length, mean 및 stdev 함수를 사용하여 표본 통계를 수집합니다.

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3. 양쪽 꼬리 유의 수준을 입력합니다.

95%의 신뢰 구간에 해당합니다.

4. qt 함수를 사용하여 양쪽 꼬리 검증을 위해 스튜던트 t 분포의 95번째 백분위수를 구합니다.

5. 신뢰 구간의 하한값과 상한값을 계산합니다.

6. 표본 데이터, 평균 및 해당 신뢰 구간을 도표화합니다.

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7. pt 함수를 사용하여 신뢰 구간의 누적 확률 분포를 계산합니다.

8. rt 함수를 사용하여 스튜던트 t 분포에 따라 난수 벡터를 생성합니다.

워크시트를 다시 계산하면 rt 함수가 다른 난수 집합을 구합니다.