Quiz_10 - SOURCE SS df s 2 F

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QUIZ 10  204  Spring 2001  SI      NAME____________________________   1. A professor wants to know if room temperature affects student performances on quizzes.  He  randomly assigns 25 students to five rooms which are identical except for room temperature.  He  gives each student  the same quiz and records the scores. 65 o 75 o 85 o 95 o 105 o Σ all x = _______ 8 9 8 5 4 7 8 9 7 6 Σ all x 2 = _______ 8 10 5 4 3 9 8 7 5 4 N = _________ 6 7 6 3 2 X 1 ____ X 2 _____ X 3 _____ X 4 _____ X 5 ______ State the alternative hypothesis:  ___________________________________________ COMPUTE: a. SS B__________ f. S 2 B__________ b. SS W__________ g. S 2 W__________ c. SS Tot_________ h. F obt___________ d. df B___________ i. F crit (.01) = ________ e. df W___________ j. Conclusion:______________________________________ _______________________________________________________________________ 2. Complete the following table where indicated: (not related to problem above)
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Unformatted text preview: SOURCE SS df s 2 F ________________________________________________________ Between 130 _______ 26 ______ Within _______ _______ _______ Total 200 19 YOU SHOULD HAVE FILLED IN FIVE BLANKS IN THE TABLE ABOVE.-----------------------------------------------------------------------------------------------------------3. In a 1-way ANOVA, the total variance can be partitioned into two components. They are ___________________________________ and ___________________________________ 4. Notice that one subject in the fourth condition of problem 1 above had a score of 5. What is their numerical contribution to the within group variance ? ______...
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Quiz_10 - SOURCE SS df s 2 F

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