Answers Key Exam 1 - Managerial Statistics I | BA 301, Exams of Statistics

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Name Student ID: Keg BA 301 - Fall 2006 - Exam 1 You have 70 minutes to complete this exam. You may use calculators subject to the caveats identified on the course syllabus. You may not consult any other resources which have not been provided by the instructor. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Each question is worth 2 points. 1. Data all of these alternatives is correct. b. are the raw material of statistics c. can be nonnumeric d. can be numeric 2. The entities on which data are collected are a. populations (@® None of these alternatives is correct. c. people d. samples 3. A frequency distribution is a tabular summary of data showing the @® None of these alternatives are correct b. percentage of items in several classes c. fraction of items in several classes d. relative percentage of items in several classes 4. Which of the following provides a measure of central location for the data? a. range b, standard deviation c. variance @ mean 5. The variance of a sample of 169 observations equals 24, The standard deviation of the sample equals . 13 b. 576 c. 28,461 @ 490