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STAT 6020Introduction to BiostatisticsFall 2005Dr. G. H. Rowell

Class 4

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Announcements

Workshop on Mathematical Tools & Statistical Techniques for Quantitative Medical Data Analysis Oct 13-14, 2005 East Tennessee State University,

Johnson City, TN See handout There may be some travel funds

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From Previous Classes

Height Data Make comparisons from the class

data.Binomial Post Test

Binomial ReviewRandomization Questions

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SAS/Excel ExampleAge HDL Cholesterol Gender

38 57 M

42 54 F

46 34 M

32 56 F

55 35 M

52 40 F

61 42 M

61 38 F

26 47 M

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Ch 8.2: Sampling Distributions

Sampling Distributions for Proportions Example – Pizza Brands Mean Standard Error

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Ch 8.2: Sampling Distributions

Sampling Distributions for Means http://kitchen.stat.vt.edu/~sundar/jav

a/applets/CLTApplet.html Mean Standard Error

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Ch 8.4: Standard Error of Sampling Distributions

Sample Means One mean Difference in means

Sample Proportions One proportion Difference in proportions

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8.4: Confidence Intervals

http://www.stat.sc.edu/~west/javahtml/ConfidenceInterval.html

PPT Lesson

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Ch 8.5: Hypothesis Testing

PPT

Homework – 8.1 – 8.4