quiz2_F08_key

quiz2_F08_key - _ BUSI 410 FINAL QUIZ Monday, December 8,...

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Page 1 of 14 ____________________________________________________________________________________ BUSI 410 – FINAL QUIZ Monday, December 8, 2008, 4-7 pm This quiz consists of three short cases: Marketing Ballgames at the Durham Bulls Athletic Park , which is printed on pages 3-5. Mike’s Doctoral Thesis , which is printed on pages 6-10. which is printed on pages 11-14. The quiz is open book, open notes, and open laptops. Your laptop’s wireless connectivity must be disabled. The quiz is closed cell phones and closed friends. Show all of your work on the quiz papers. Name________________________________________ Please Print Section (please circle): MW 12:30 MW 2:00 TR 9:30 TR 11:00 Honor Code Pledge: I have neither given nor received unauthorized aid on this quiz. Signature_____________________________________
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Page 3 of 14 MARKETING BALLGAMES AT THE DURHAM BULLS ATHLETIC PARK Ron Snyder is the head of marketing promotions at the Durham Bulls Athletic Park (DBAP). One of the primary tools that he uses to increase attendance at the Durham Bulls baseball games is giveaway promotions. Game patrons are given many different items – bobble-head dolls, umbrellas, baseballs, baseball caps, etc. Snyder has told his boss that giveaway promotions really do pay off – that his goal is to mount promotions that are successful enough to bring an average of at least 5,000 patrons into the ballpark anytime there is a promotion. Unfortunately, when he looked at the Bulls’ 40 giveaway promotion games during the 2008 season, the average attendance was only 4,942.25, with a standard deviation of 2,003.5. 1. (6pts) At the 5% level, do the 2008 data provide significant evidence to refute Snyder’s goal? H 0 : μ 08 5,000, H Α : μ 08 < 5,000 t = (4,942.25-5,000)/(2,003.5/(SQRT(40))) = -0.1823 p-value = TDIST(0.1823,39,1) = 0.4281 > 0.05. Since the p-value exceeds the significance level, we cannot reject the null hypothesis that μ 08 5,000, i.e., we do not have significant evidence to refute Snyder’s goal. 2. (2pts) What assumptions, if any, did you need to make in conducting the test in question 1? Since the sample size exceeds 30, we know that the CLT holds (as long as attendance numbers are independent and identically distributed random variables). A related question in Snyder’s mind is whether these promotions really do work, that is, whether they significantly increase attendance (and consequently, revenue) relative to game days when there is no promotion. During the summer of 2008 the Bulls played 72 home games. As mentioned above, there were giveaway promotions at 40 of these games. Since he felt it would be important to, as he put it, “compare apples to apples”, Snyder compared the attendance at 32 randomly selected giveaway
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Page 4 of 14 promotion games with the attendance at the 32 games when there were no promotions. A portion of these data are: Game
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This document was uploaded on 11/04/2011 for the course BUSI 410 at UNC.

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quiz2_F08_key - _ BUSI 410 FINAL QUIZ Monday, December 8,...

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