Midstudy

Midstudy - MCO302 Prof. Doig Fall `07 Important Concepts...

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MCO302 Prof. Doig Fall ‘07 Important Concepts from Chapters 1-11 Percentage change = (NEW/OLD - 1) * 100 How to conduct a study properly The 7 critical components of sound statistical studies The different types of variables Pitfalls in survey questions How to calculate and use sampling margin of error Sampling plans: simple random, stratified random, cluster, systematic, random digit dialing Difficulties and disasters in sampling Reasons why researchers often must use observational studies instead of experiments How to make a stemplot How to make a histogram How to do a five-number summary How to calculate and use a standardized score (z-score) The Empirical Rule and how to use it Types of data pictures: pie chart, bar graph, pictograph, scatterplot, line graph Correlation: Strength and sign How to use a regression formula to predict a dependent variable given the value of an independent variable How outliers can affect correlation
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This note was uploaded on 05/05/2008 for the course MCO 302 taught by Professor Doig during the Fall '07 term at ASU.

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Midstudy - MCO302 Prof. Doig Fall `07 Important Concepts...

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