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INTRODUCTION PowerPoint Presentation
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INTRODUCTION - PowerPoint PPT Presentation

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INTRODUCTION
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  1. INTRODUCTION

  2. Population Parameter Sample Census Statistic Appropriate Way (Random Selection) Inappropriate Way

  3. EXAMPLES Indicate whether population or sample and identify either parameter or statistic. In Greenfield, there are 13 members of the town council. In a recent pole, 56% of the members voted in favor of new spotlights. Population ~ Parameter A survey was conducted of 125 business owners in Franklin County. 25% of them would like to see a reduction in the sales tax. Sample ~ Statistic

  4. QUANTITATIVE vs QUALITATIVE Number of eggs. Wildflowers or garden flowers. Boy/girl dogs. Gallons of milk. Lemons vs oranges. Lengths of string. Dollars earned by millionaires.

  5. DISCRETE vs CONTINUOUS (fewer) (less) Number of eggs in a basket. Tire sizes. Grade point averages. Whole gallons of milk. Number of people in a room. Lengths of string. Dollars earned by millionaires.

  6. NOMINAL, ORDINAL, INTERVAL, RATIO Students going to college. Skating competition results. Fevers of children in a hospital. Diamond weights.