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For many years, the medically accepted practice of giving aid to a person experiencing a heart attack was to have the person who placed the emergency call administer chest compression (CC) plus standard mouth-to-mouth resuscitation (MMR) to the heart attack patient until the emergency response teams arrived. However, some researchers believed that CC alone would be a more effective approach.
In the 1990s a study was conducted in Seattle in which 518 cases were randomly assigned two treatments: 278 to CC plus standard MMR and 240 to CC alone. A total of 64 patients survived the heart attack, 29 in the group receiving CC plus standard MMR, and 35 in the group receiving CC alone. A test of significance was conducted on the following hypotheses.
H0: The survival rates for the two treatments are equal
Ha: The treatment that uses CC alone produces a higher survival rate
This test resulted in a p-value of 0.0761
What is one potential consequence if the error in #4 occurs?
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