Содержание
- 2. Questions to consider ( A) What is Statistics? (B) Why should I study Statistics? (C )
- 3. Definitions Data Consists of information coming from observations , counts, measurements, or responses. Statistics: Is the
- 4. Examples Identifying Data Sets: In a recent survey 3002 adults in the United States were asked
- 5. Responses of all adults in the United States (population. ) Venn Diagram Responses of adults in
- 6. Try this Yourself The U.S. Department of Energy conducts surveys of 800 gasoline stations to determine
- 7. Answer The population consists of the prices per gallon of all stations in the United States.
- 8. Definitions A parameter Is a numerical description of a population characteristic. A statistic is a numerical
- 9. Examples 1.)A recent survey of a sample of MBA’s reported that the average starting salary for
- 10. Solution 1.) because the numerical measure of $65,000 is based on a subset of the population
- 11. Try This Yourself In 2001 major league baseball teams spent a total of $1,968,088,814 on players
- 12. Branches of Statistics Definition Descriptive Statistics: is the branch of statistics that involves the organization ,summarization
- 13. Example A large sample of men aged 48 were studied for 18 years. For unmarried men
- 14. Example In a sample of Wall Street analysts the percent who incorrectly forecasted high-tech earnings in
- 15. Homework Pgs. 6-7 1-6,9-11, 13-15,17-19,21-24 and 29
- 16. An Overview of Statistics Section 1.1 After you see the slides for each section, do the
- 17. Introduction to Statistics As you view these slides be sure to have paper, pencil, a calculator
- 18. Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.
- 19. Important Terms Population The collection of all responses, measurements, or counts that are of interest. Sample
- 20. Important Terms Parameter A number that describes a population characteristic. Statistic A number that describes a
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