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Suppose a 95% confidence interval for the mean difference in anxiety level before and after taking a certain medication (i.e. mean anxiety level after -

Suppose a 95% confidence interval for the mean difference in anxiety level before and after taking a certain medication (i.e. mean anxiety level after - mean anxiety level before) was found to be (-4.8, -2.3). You conclude that the medication appears to reduce anxiety level.

A. True
B. False

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