Studies have shown that people who suffer sudden cardiac arrest have a better chance of survival cardiac arrest. How is survival rate related to the time between when cardiac arrest occurs and when the defibrillator shock is delivered? a defibrilla shock is administered very soon after The accompanying data give y = survival rate (percent) and x = mean call-to-shock time (minutes) for a cardiac rehabilitation center (in which cardiac arrests occurred while victims were hospitalized and so the call-to-shock time tended to be short) and for four communities of different sizes: Mean call-to-shock time, x 2 6 7 9 12 Survival rate, y 91 45 31 5 2 The data were used to compute the equation of the least-squares line, which was ŷ = 102.44 - 9.39x. newspaper article reported that "every minute spent waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 10 percent." Is his statement consistent with the given least-squares line? Explain. O since the slope of the least-squares line is 102.44, we can say that every extra minute waiting for paramedics to arrive with a defibrillator raises the chance of survival by 10.244 percentage points. O since the slope of the least-squares line is 9.39, we can say that every extra minute waiting for paramedics to arrive with a defibrillator raises the chance of survival by 9.39 percentage points. O There is not enough information from the least-squares line to make such a statement. O since the slope of the least-squares line is -9.39, we can say that every extra minute waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 9.39 percentage points. O since the slope of the least-squares line is -102.44, we can say that every extra minute waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 10.244 percentage points.
Studies have shown that people who suffer sudden cardiac arrest have a better chance of survival cardiac arrest. How is survival rate related to the time between when cardiac arrest occurs and when the defibrillator shock is delivered? a defibrilla shock is administered very soon after The accompanying data give y = survival rate (percent) and x = mean call-to-shock time (minutes) for a cardiac rehabilitation center (in which cardiac arrests occurred while victims were hospitalized and so the call-to-shock time tended to be short) and for four communities of different sizes: Mean call-to-shock time, x 2 6 7 9 12 Survival rate, y 91 45 31 5 2 The data were used to compute the equation of the least-squares line, which was ŷ = 102.44 - 9.39x. newspaper article reported that "every minute spent waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 10 percent." Is his statement consistent with the given least-squares line? Explain. O since the slope of the least-squares line is 102.44, we can say that every extra minute waiting for paramedics to arrive with a defibrillator raises the chance of survival by 10.244 percentage points. O since the slope of the least-squares line is 9.39, we can say that every extra minute waiting for paramedics to arrive with a defibrillator raises the chance of survival by 9.39 percentage points. O There is not enough information from the least-squares line to make such a statement. O since the slope of the least-squares line is -9.39, we can say that every extra minute waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 9.39 percentage points. O since the slope of the least-squares line is -102.44, we can say that every extra minute waiting for paramedics to arrive with a defibrillator lowers the chance of survival by 10.244 percentage points.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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