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exam1a - STA 6166 Exam 1 Fall 2006 PRINT Name 1 You want to...

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STA 6166 Exam 1 Fall 2006 PRINT Name _______________ 1. You want to ask a sample of professors at your school how they feel about the tenure system for faculty. You realize that opinions may differ depending on the rank of the professor, especially because assistant professors do not have tenure. You take separate simple random samples of assistant, associate, and full professors and combine them to form your data. You have used a a. simple random sample. b. stratified random sample. c. systematic sample d. completely randomized design experiment. e. randomized complete block design experiment. 2. True or False? Bar graphs and pie charts are used for quantitative data; histograms are used for qualitative data. 3. Complete the following statement by placing the correct words in the blanks. A parameter is a descriptive measure of a __________, a statistic is a descriptive measure of a __________. 4. Egg quality (Grade AA, Grade A, Grade B) is measured on a a) nominal scale. b) ordinal scale. c) interval/ratio scale. d) random scale. 5. A study of the effect of parents' smoking habits on the smoking habits of students in a high school produced the following table of proportions. Suppose a student is randomly selected from this population. a. What is the probability the student smokes and at least one parent of the student smokes?
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