f98exm3b - COURSE: MSCI 3710 EXAM 3 Version B SEMESTER:...

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COURSE: MSCI 3710 Print Name: EXAM 3 Signature: Version B S.S.#: SEMESTER: Fall 1998 Seat Number: Note: Whenever question(s) are connected you may be asked to assume a result (given a value) from the previous question but this result may or may not be correct. This is to prevent you from losing points on a second question because you made a mistake on a previous question. Use the following information to answer the next three questions A real estate firm wanted to know whether the type of house purchased is associated with the
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amount of education of the head of the household. Fox and Jones Construction builds four styles of homes. A random sample of 255 homeowners who own a Fox and Jones house was taken, and the education level of the household head was noted. Cross-tabulation Table OBSERVED House Type No College Degree BA Degree Masters Degree Doctoral Degree Total House Type 1 17 10 6 5 38 House Type 2 18 15 13 7 53 House Type 3 15 25 30 15 85 House Type 4 7 23 35 14 79 Total 57 73 84 41 255 1. Compute the expected number of house type 4s in which the household head has a Masters Degree. A. 13.7 B. 22.6 C. 26.0 D. 7.5 E. 84 2. To conduct the hypothesis test of whether there is a relationship between type of house and the household head education level, a test statistic must be computed as the sum of twelve separate fractions. Compute the part of this test statistic given by taking into account the observed and expected number of house type 3s whose household head has a Doctoral degree. A. .129 B. .179 C. 1.157 D. .0185 E. 1.333
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3. Suppose the calculated value of the test statistic were equal to 27.6. What would be the decision and conclusion of your hypothesis test at the .05 significance level? A. Reject the null hypothesis, conclude there is no evidence of a relationship between house type and the education level of the household head. B. Fail to reject the null hypothesis, conclude there is no evidence of a relationship between house type and the education level of the household head. C. Reject the null hypothesis, conclude there is evidence of a relationship between house type and the education level of the household head. D.
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This note was uploaded on 03/09/2011 for the course DSCI 3710 taught by Professor Dr.jay during the Spring '08 term at North Texas.

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f98exm3b - COURSE: MSCI 3710 EXAM 3 Version B SEMESTER:...

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