SumI2002FinalA

SumI2002FinalA - COURSE: MSCI 3710 Final Exam Version A...

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COURSE: MSCI 3710 Print Name: Final Exam Signature: Version A S.S.#: Summer I 2002 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 information given in the paragraph below to answer the next four questions. (Kvanli Chapter 8) Instructions: n Please print your name, social security number, and seat number on this exam. Also, put your signature on this exam. l On your scantron PRINT your name, your version, and your seat number. To better protect your privacy also print your name on the back side of your scantron. l You have 110 minutes to complete this exam. The exam is open book, open notes, and open mind. You may use any type of calculator but please show all your work on the exam and mark all answers on the scantron. l Many of the questions follow the format of those in Adventures in Business Statistics. The remaining questions are either based on the Excel assignment or use an Adventures-like approach with problems nearly identical to those assigned in the textbook. l When you have completed the exam, please insert your scantron into the exam booklet and turn them into your instructor. l No cheating. l Good luck and we wish you well on the exam.
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The labels on packages of Sugar’swt claim that each package weighs 175 grams. However, a representative of a consumer advocate group believes the mean weight of the package-content is less than 175 grams. To test their belief, a representative of a consumer advocate group selected a random sample of 70 packages. From this sample, the mean and standard deviation were found to be 172 grams and 8 grams, respectively. Test the appropriate hypothesis at the 1% significance level. 1. What is the calculated value of the test statistic? A. +3.22 B. 1.55 C. 2.02 D. -0.23 E. -3.14 * 2. What is the “Reject Ho” region of the test statistic? A. To the left of Z = -2.326 and to the right of Z = 2.326 B. To the left of Z = -2.326 * C. To the left of Z = -1.645 and to the right of Z = 1. 645 D. To the left of t = -1. 645 and to the right of t = 1. 645 E. To the right of Z = 1.645 3. Assuming the calculated value of the test statistic is –1.96, what are the decision and conclusion of the test? A. Reject the null hypothesis, conclude there is sufficient evidence that the package weight is less than 175 grams. B. Fail to reject the null hypothesis, conclude there is insufficient evidence that the package weight is less than 175 grams. * C. Fail to reject the null hypothesis, conclude there is sufficient evidence that the package weight is less than 175 grams. D. Reject the null hypothesis, conclude there is sufficient evidence that the package weight
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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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SumI2002FinalA - COURSE: MSCI 3710 Final Exam Version A...

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