기본 콘텐츠로 건너뛰기

[R] Right tailed test. BETTER = Rt. tail(better)

What is a Right Tailed Test?

A right tailed test (sometimes called an upper test) is where your hypothesis statement contains a greater than (>) symbol. In other words, the inequality points to the right. For example, you might be comparing the life of batteries before and after a manufacturing change. If you want to know if the battery life is greater than the original (let’s say 90 hours), your hypothesis statements might be:
Null hypothesis: No change (H0 = 90).
Alternate hypothesis: Battery life has increased (H1) > 90.
The important factor here is that the alternate hypothesis(H1) determines if you have a right tailed test, not the null hypothesis.

댓글

댓글 쓰기

이 블로그의 인기 게시물

[CK] Preventing aspiration.

960 × 720 저작권 보호를 받는 이미지일 수 있습니다.    자세히 알아보기 https://www.google.com/search?q=position+to+prevent+aspiration&rlz=1C1GCEV_enUS820US820&source=lnms&sa=X&ved=0ahUKEwjZ8NbnkoDfAhUs4YMKHZhrBM8Q_AUICSgA&biw=1177&bih=859&dpr=1 HOB 30-45 degree. => resting turn head to Rt. side. or lateral position => for seizing or unconsciousness. 
댓글 쓰기
자세한 내용 보기

[CK] STEMI_EKG learning.

892 × 548 저작권 보호를 받는 이미지일 수 있습니다.    자세히 알아보기 ECG - Common STEMI Mimics | Grays Integrative Physiology Grays Integrative Physiology Mimics will not produce reciprocal changes. If RCs in related leads, should consider it a STEMI. 방문 추가 컬렉션 공유
댓글 쓰기
자세한 내용 보기

[CK] LVAD parameter review. [ ] tree !!

Vital(BP): hypo, hyper. PEx(JVP): volume status -------------------------------- 1st. PI(3-7)= contractility and volume status(high volume only cause high PI) overload = high PI. low volume = low PI. (=low volume = low preload = RV failure, arrhythmia same thing) HTN = low PI low BP = low PI. (only overload cause high PI = with high preload, but otherwise, BP, volume => cause low PI) 2nd. Flow(4-6) overload, 3rd. Power(surge = only thrombus, 4-6) hypotension route (BP) => high VADFL = vasodilator, sepsis = R/O => low VADFL(most common)  with high JVP => RV failure, PE/tamponade, pneumothorax                                                                               , then adjust LVAD(higher)                ...
댓글 쓰기
자세한 내용 보기