Dr.Johnson is studying the effects of aspirin on heart rate.He believes that aspirin will lower heart rate.He has 2 groups the treatment group receives 80mg of aspirin for a week (n=4) the control group received a placebo (n=4) and their heart rates are compared.Below is his data in which heart rate is beats per minute.He sets his alpha level at 0.05 and uses a directional test. 
Can you reject the null hypothesis and concluded that aspirin lowers heart rate?
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A devastating Category 5 hurricane that struck the Gulf Coast of the United States in 2005, causing widespread destruction and loss of life.
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A controversial political or social issue used by a party or group to divide opponents or unite supporters.
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The act of moving into or residing in a country without the legal permission of the government.
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