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A researcher knows that a population standard deviation is = 3. She collects a sample of n = 50 who provide a sample mean of
A researcher knows that a population standard deviation is = 3. She collects a sample of n = 50 who provide a sample mean of 14.20. She begins with the following hypotheses:
H0: = 15
H1: 15
What type of test will she use to test this hypothesis? ______________________________
For two-tailed test, = .05: significant or not significant
For one-tailed test, = .05: significant or not significant
For two-tailed test, = .10: significant or not significant
For one-tailed test, = .01: significant or not significant
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