**Transcription for Educational Website:****Q5.**Borer et al. [1980], studied 45 individuals after an acute myocardial infarction (heart attack). They measured the ejection fraction (EF); the EF is the percent of the blood pumped from the left ventricle (the pumping chamber of the heart) during a heartbeat. A low EF indicates damaged or dead heart muscle (myocardium). During follow-up, four patients died. Dividing EF into low (< 35%) and high (≥ 35%) EF groups produced the following table.| EF | Vital Status | ||------------|--------------|----------|| | Dead | Alive || < 35% | 4 | 9 || ≥ 35% | 0 | 32 |Is there reason to suspect, at a 0.05 significance level, that death is more likely in the low EF group? Use a one-sided p-value for your answer, since biological plausibility (and prior literature) indicates low EF is a risk factor for mortality.

Here, we use hypothesis testing: Null hypothesis (H0) : p1 =p2 Alternate Hypothesis (Ha) : P1 >P2…

Answered: **Transcription for Educational…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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