98Zexam1akey - EXAM 1-A NAME MSCI 3700 Fall, 1998 Section...

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EXAM 1-A MSCI 3700 Fall, 1998 NAME Section Class time: Please put your name on this cover sheet and your name on the scantron. Also put the section number in the Subject box (ie. 3700.002) in addition to the Date, Test No. (Such as EXAM 1-A), and Hour (ie. 8am). You have 1 hour and 15 minutes to complete this exam. The exam is closed book, personally developed formula sheet and calculator permitted. Please show any calculations/work on the exam and mark all answers on the scantron. 1. What level of measurement is “brand of automobile gasoline purchased” ? A. Nominal B. Ordinal C. Interval D. Ratio E. Quantitative 2. What level of measurement is “price of ice cream purchased” at Braums? A. Nominal B. Ordinal C. Interval D. Ratio E. Qualitative 3. The “strength of support for the president” on national survey of voters is what level of measurement? Answers range from strongly support to support to censure to impeach . A. Nominal. B. Ordinal. C. At least interval. D. Ratio and continuous. E. Qualitative and discrete. 4. The trend equation for time series is what level? A. Nominal since only certain discrete numbers can occur. B. Ordinal because some are larger than others. C. Interval but the distances between two values is a percentage. D. Ratio. E. Qualitative and discrete. 5. The major field of students in BCIS 2610, the major field of students in ACCT 2020, the major field of students in MSCI 3700, the major field of students in MGMT 3820, etc. are to be analyzed. What descriptive statistics would best describe the data in each class? A. Mean and median only. B. Mode since the data is only categorical. C. Median and range since ACCT is before BCIS, BCIS is before FINA,. .. in alphabet. D. Mean, median, mode, standard deviation, range because the data is at least interval. E. Don’t include dispersion because most people don’t understand range, standard deviation or variance.
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Use the following data to answer questions 6 to 21. Data is from a sample. 2, 3, 9, 9, 2, 4, 6 6. What is the median? A. 2 B. 4 C. 5 D. 3 E. 9 7. What is the mean? A. 7.2 B. 6.0 C. 5.0 D. 3.0 E. 4.0 8. What is the mode? A. Bimodal, 2 and 9 B. Unimodal, 2 C. Bimodal, 1 and 8 D. Unimodal, 9 E. Bimodal, 1 and 3 9. What is the standard deviation? A. 3.21455 B. 8.00 C. 3.0551 D. 9.3333 E. 10.333 10. What is the variance? 11. What is the Sum of Squares (sum of A. 9.6667 squared deviations from the mean)? B. 62.0 A. 56.0 D. 174.0 C. 9.3333 B. 62.0 E. 231.0 D. 56.0 C. 0 E. 10.3333 12. What is the midrange? NOTE: This is #12. #11 is above ! A. 5.50 B. 4.0 C. 5.0 D. 4.50 E. 3.50
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13. A distribution of grades on Excel Homework #1 has a mean of 8.65 and a standard deviation of 2.94. What would be your “z score” if your assignment was returned with a grade of 9 ? A. +0.12
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98Zexam1akey - EXAM 1-A NAME MSCI 3700 Fall, 1998 Section...

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