# ex1_f09 - STA 6166 Exam 1 Fall 2009 PRINT Name A quality...

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STA 6166 – Exam 1 – Fall 2009 PRINT Name _____________ A quality engineer in a factory is interested in the proportion of all computer chips that her assembly line produces that meet a particular quality requirement. She selects a sample of 100 chips and finds that 85 pass the test. This means that π =0.85 is the proportion of all chips meeting the requirement. TRUE FALSE A plant researcher has measured the amount of growth among five plants that received a growth formula. He finds that the amounts of growth were: 4,8,6,7,10 cm. Give the sample mean, median, and standard deviation of the amounts of growth. A sample of 5 animals of a particular species is selected at random from the population being managed in a wildlife refuge. If 5% (0.05) of the population have a particular trait, what is the probability that none of the 5 tested have the trait? Based on the following contingency table, complete the following parts: Concussion No Concussion Total Male 40 25596 25636 Female 60 27107 27167 Total 100 52703 52803

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ex1_f09 - STA 6166 Exam 1 Fall 2009 PRINT Name A quality...

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