lecture06 - Finish chapter 5 and begin chapter 6 Will be...

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Finish chapter 5 and begin chapter 6 Will be doing chapter 7 in the next lecture set
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Recall, last lecture experiments were introduced Why is an experiment typically better than an observational study?
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Basic principles:
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How to interpret results? Why was the study performed?
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Statistical significance:
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Suppose that you read a newspaper report that said: a study at SFU found that there was a statistically significant difference between the obesity rates of breast fed infants compared to those who are not breast fed What does this mean?
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We use statistical methods to determine when an observed effect is statistically significant Major area for statistical practice and research
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Start with the assumption that all treatments impact the response in the same way (there is no difference) Collect data and compute a statistic that can compare the difference in treatments Assess the size of the effect Reject or do not that the hypothesis that there is no
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This note was uploaded on 03/10/2011 for the course STAT 100 taught by Professor D during the Spring '11 term at Simon Fraser.

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lecture06 - Finish chapter 5 and begin chapter 6 Will be...

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