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1. Schizophrenia. In the schizophrenia study in Section 2.1.2, the observations in the two groups (schizophrenic and nonschizophrenic) are not independent since each subject is matched with a twin in the other group. Did the researchers make a mistake?

2. True or false? A statistical computer package will only print outa p-value or confidence interval if the conditions for its validity are met.

3. True or false? A sample histogram will have a normal distribution if the sample size is large enough.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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