Section7 - Statistics 104 Spring 2011 Section #7 Topics for...

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Statistics 104 – Spring 2011 Section #7 Topics for Section Hypothesis Testing: Means, Proportions Matched pairs confidence interval and hypothesis test Note on Hypothesis Tests Many of the tests we consider are built using the following formula, where in this formula we calculate some statistic from our sample and call it Y. [Y – E(Y | H 0 is true)] / SD(Y | H 0 is true) Practice Problems 1. Are any physiological indicators associated with schizophrenia? Early studies based on postmortem analysis suggest that sizes of certain areas of the brain may be different in persons afflicted with schizophrenia. In an 1990 article, researchers reported the results of a study that controlled for genetic and socioeconomic differences by examining 15 pairs of monozygotic twins, where one of the twins was schizophrenic and the other was not. The researchers used MRI to measure the volumes (in cm 3 ) of several regions inside the twins' brains. Below is data based on the left hippocampus.
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This note was uploaded on 03/27/2012 for the course STATS 104 taught by Professor Michaelparzen during the Fall '11 term at Harvard.

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Section7 - Statistics 104 Spring 2011 Section #7 Topics for...

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