AK13_230 - Exercise 6. Explained during recitation....

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ECO 230 Marianna Kudlyak Economic Statistics Spring 2007 Answer Key to Homework #13 Total points: 10. Graded exercises: Ex. 1 (3pts), Ex. 6(2.5pts), Ex. 7 (2.5pts); 0.5pts for the presence of each of the remaining 4 exercises. Exercise 1 . Newbold, Carlson and Thorne, Problem 10.46, p.362. Exercise 2 . Newbold, Carlson and Thorne, Problem 11.41, p.399. Exercise 3 . Newbold, Carlson and Thorne, Problem 11.17, p.385.
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Exercise 4 . Newbold, Carlson and Thorne, Problem 11.25, p.389. Exercise 5 . Newbold, Carlson and Thorne, Problem 11.28, p.393.
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Unformatted text preview: Exercise 6. Explained during recitation. Assuming normal distribution use a matched-pairs test of the difference between populations means with critical value t 19-1 . Exercise 7. Construct an independent samples t-test to determine whether there is a statistically significant difference between waiting times during the two periods in question. In addition, construct an F-test to test the assumption of the equality of populations variances. Depending on the outcome of the F-test use the appropriate independent samples t-test....
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This note was uploaded on 06/09/2008 for the course ECO 230 taught by Professor Kudlyak during the Spring '08 term at Rochester.

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AK13_230 - Exercise 6. Explained during recitation....

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