stat test 1 fall 03

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Unformatted text preview: Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Total 13 Pts 12 Pts 13 Pts 19 Pts 18 Pts 25 Pts 100 Pts MATH 147 TEST ONE Fall 2003 September 26, 2003 Name: Section: (1 points) DIRECTIONS: Show all work. Solutions with no work will receive NO credit. Neatness counts. All necessary tables are provided at the end of the test. Carry out all your calculations to at least two digits to the right of the decimal point. Part I True/False For questions 1 - 3 circle T for true and F for false. (2 points each) 1. T F Randomization is used to make the treatment group like the control group. 2. T F Confounding means that, in addition to the treatment, the treatment group is different from the control group in a significant way. 3. T F According to data from the National Highway and Traffic Safety Administration, 134 Corvettes were stolen out of 18,938 produced while 300 Berettas were stolen out of 47,598 pro- duced. Since 300 is bigger than 134, it is reasonable to conclude that car thieves prefer Berettas. Part II Fill in the blank For questions 4 - 5 complete the sentence by filling in the blank. (2 points each) 4. The following list of numbers: 1, 7, 13, 21, 26 is converted to standard units. What is the resulting standard deviation (SD) of the converted list? . 5. In a double blind experiment, neither the nor the know who is in the experiment and who is in the control group....
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## This note was uploaded on 04/09/2008 for the course MATH 147 taught by Professor Klimko during the Spring '07 term at Binghamton University.

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