SP-exam2. Ver. D

SP-exam2. Ver. D - COURSE: MSCI 3710 EXAM 2 Version D...

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COURSE: MSCI 3710 Print Name: EXAM 2 Signature: Version D S.S.#: SEMESTER: Spring 2000 Section 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. The following information pertains to the next two questions (1-2). A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self- Instructions: n Please print your name, social security number, and section number on this exam. Also, put your signature on this exam. A On your scantron PRINT your name, your version, and your section number. To better protect your privacy also print your name on the backside of your scantron. A You have 50 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. A 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. A When you have completed the exam, please insert your scantron into the exam booklet and turn them in to your instructor. A No cheating. A Good luck and we wish you well on the exam. 1
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improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let p1 and p2 represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study respectively. If the firm wanted to test whether a greater proportion of workers would currently like to attend a self-improvement course than in the past, 1. What are the correct null and alternative hypotheses for the above situation? A. Ho: p 1 – p 2 = 0 versus Ha: p 1 – p 2 0 B. Ho: p 1 – p 2 0 versus Ha: p 1 – p 2 = 0 C. Ho: p 1 – p 2 0 versus Ha: p 1 – p 2 > 0* D. Ho: p 1 – p 2 0 versus Ha: p 1 – p 2 < 0 E. Ho: p 1 – p 2 =0 versus Ha: p 1 – p 2 > 0 2. What is the critical value for testing the hypotheses for this problem if α = 0.05? A. 1. 645 *
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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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SP-exam2. Ver. D - COURSE: MSCI 3710 EXAM 2 Version D...

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