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tethead tethead
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Posts: 1298
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7 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) there is a difference in worker speed, but no prediction is made.
B) people who work at night work faster.
C) people who work in the morning work faster.
D) there is no difference in the speed at which people work.
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ErhardtErhardt
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Posts: 838
7 years ago
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tethead Author
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7 years ago
Thanks
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Yesterday
Helped a lot
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2 hours ago
this is exactly what I needed
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