Assignment4

Assignment4 - Sociology 549, Winter 2006 Paul von Hippel...

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Sociology 549, Winter 2006 Paul von Hippel Your name____________________________ Assignment #4 (23 points possible) Due Th 11/9 at the beginning of your lab session 1. (4 points) Do SSDS problems 3a-b on page 499 (3 rd edition) or pages 437-8 (4 th edition), and check your answers in the back of the book. [ Note : The book’s answers are condensed. Please spell your own answers out in full, stating both the research and null hypothesis in formal notation (“H 0 … H 1 :..”).] Also state whether the research hypothesis is one- or two-tailed. a. b. 2. (10 points) In a simple random sample of 17 OSU students, the mean ACT score is 25.9 and the standard deviation is 2.7. a. (3 points) Last year the university president said that the mean ACT score at OSU was 27. Set up a test of the research hypothesis that the president was just making this number up. Write down the null and research hypotheses using formal notation (“H 0 :…”). Will this be a one- or two-tailed test?
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Assignment4 - Sociology 549, Winter 2006 Paul von Hippel...

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