Question
Smoking is a risk factor affecting patient's cardiovascular system (and not only cardiovascular system, of course). Jennifer was asked to take random samples of male
Smoking is a risk factor affecting patient's cardiovascular
system (and not only cardiovascular system, of course).
Jennifer was asked to take random samples of male Healthy
Life members recently admitted to hospitals in GTA with heart
attacks. She compiled two large separate files consisting of
those male residents of Toronto who smoked and those who
never smoked. The purpose of this research is to prove that the
first heart attack occurs at an earlier age if a patient smoked.
After carefully analyzing the data Jennifer came up with the
hypothesis that male smokers who suffer a first heart attack are, on average, seven years younger
than non-smoking males who suffer a first heart attack. The data are provided in the data file. Use
Data Analysis t-Test: Two-Sample Assuming Unequal Variances. Please help Jennifer Nguyen to
conduct the test at 5% significance level. As it is known that both samples come from normally
distributed populations, no histograms are required.
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