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One tailed or two tailed alternative ?

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For each of the following hypotheses, decide whether a one-tailed or two-tailed test would be performed:
a. Children with birth defects will score differently than the normal population on a measure of self-esteem.
b. Smoking affects the short-term memory in individuals.
c. People from Asia will score similarly as North Americans on a depression test.
d. Males will score higher than females on a test of sports knowledge.
e. Adolescents who are overweight report fewer close friends than adolescents within average weight.

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a. Children with birth defects will score differently than the normal population on a measure of self-esteem. : Two tailed ...

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Answers to One tailed or two tailed hypothesis questions are given in the answers

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