Applied Stat for Bio Sci
Applied Stat for Bio Sci STA 100
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This 2 page Class Notes was uploaded by Carmen Mayer on Tuesday September 8, 2015. The Class Notes belongs to STA 100 at University of California - Davis taught by Abdolrahman Azari in Fall. Since its upload, it has received 15 views. For similar materials see /class/191907/sta-100-university-of-california-davis in Statistics at University of California - Davis.
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Date Created: 09/08/15
STA 100 Lecture 12 Comparison of Two Independent Populations Introduction A Practical Problem We would like to compare the average time loss due to accidents in two groups of industrial plants One group is following the guidelines of Occupational Safety and Health Act OSHA more closely than the other group What are the steps to do this study Consider two populations Meanof 371 372 Variance of 3 1 3 2 Standard deviation of f1 P2 IIInferences When 0391 and 0392 Are Known a If the two populations are normal then 3 1 f2 is distributed as This shows that Example Timeloss due to accidents
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