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Home Q & A Board Science-Related Homework Help Mathematics
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Hog95 Hog95
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10 years ago
If a psychologist tests whether there is any difference between how fast people work in the morning versus how fast they work in the evening, the null hypothesis is that 
A)   People who work in the morning work faster. 
B)   People who work at night work faster. 
C)   There is a difference in worker speed, but no prediction is made. 
D)   There is no difference in the speed at which people work. 
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padrepadre
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#1
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10 years ago
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Hog95 Author
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#2
10 years ago
Thank you so much for the reply. Your answer makes a lot of sense.
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