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Unformatted text preview: Name_______________________________ Stat 3011 Spring 2011 Introduction to Statistics Final Exam This exam is closed book. You are allowed a calculator and two 8 ½ inch by 11 inch pieces of paper with notes. All other materials must be put away. Cell phones must be off. You have one hour for this exam. Problem 1 (25 points) Below are five hypothesis tests, numbered 1-5, and ten formulas for the degrees of freedom, lettered a-j. For each of the five hypothesis tests listed below, choose the option(s), a-j, that describe the associated degrees of freedom. Note that some options may be used more than once, and some may not be used at all. 1. χ 2 test for goodness-of-fit 2. t-test of the regression slope 3. χ 2 test for independence 4. Two sample t test 5. One sample t test Options for degrees of freedom: a) # in sample – 1 b) # in sample – 1 for the larger group c) # in sample – 1 for the smaller group d) # in sample – 2 e) # categories/groups – 1 f) # categories/groups for variable 1 – 1 g) # categories/groups for variable 2 – 1 h) (# categories/groups for variable 1 – 1)*(# categories/groups for variable 2 – 1) i) (# categories/groups for variable 1)*(# categories/groups for variable 2 ) –1 j) # in sample – # categories/groups Problem 2...
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This note was uploaded on 02/28/2012 for the course ECON 111 taught by Professor Aaa during the Summer '11 term at UIBE.
- Summer '11