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Home Q & A Board Science-Related Homework Help Mathematics
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Hog95 Hog95
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9 years ago
If a health psychologist wants to know if regular exercise improves people's health, the type of hypothesis the psychologist would use is 
A)   One-tailed because the study is only interested in whether the exercise increases health. 
B)   One-tailed because the study only looks at the effects of exercise and does not consider other factors. 
C)   Two-tailed because the study will have to involve both healthy and unhealthy people. 
D)   Two-tailed because no direction for any observed difference has been predicted. 
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padrepadre
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9 years ago
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Hog95 Author
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#2
9 years ago
Thank you so much for the reply. Your answer makes a lot of sense.
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