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.
What is the strength of the relationship?
A) .75
B) .72
C) .67
D) None of these
Correct Answer:
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Q2: Before a researcher decides what statistical test,and
Q7: JJ just used an Independent groups t-test
Q10: Dr.Johnson is studying the effects of aspirin
Q11: Dr.Johnson is studying the effects of aspirin
Q15: A directional alternative hypothesis is written as_.
A)H0:
Q16: Dr.Johnson is studying the effects of aspirin
Q18: In an APA results section and independent
Q18: A non-directional alternative hypothesis is written as
Q19: Dr.Johnson is studying the effects of aspirin
Q20: Confidence intervals are used to_.
A)provide information about
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