Answer_Quiz_3_Form_A

Answer_Quiz_3_Form_A - a. 15.6 c. 22.7 b. 21.0 d. 18.3 5....

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STAT 250 Spring 2009 Quiz 3 Please write your name on your scantron form. Mark your answers on this question paper and scantron form. When you have finished the quiz, please put your scantron inside the Quiz and wait until your professor asks you to return it. Multiple Choice. Choose the one alternative that best completes the statement or answers the question. 1. Which measure of central tendency can be used for describing qualitative data that cannot be ordered? a. Mean c. Median b. Mode d. Midrange 2. Which measure of central tendency is most affected by outliers or skewness of a distribution? a. Mean c. Median b. Mode d. None of the Above 3. Suppose the mean for 6 data points is 25.5. What is the sum of these data values? a. 24 c. 4.25 b. 153 d. 127.5 Use the following data set to answer questions 4- 7: 33 15 4 16 23 33 35 4. The mean is
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Unformatted text preview: a. 15.6 c. 22.7 b. 21.0 d. 18.3 5. The Median is a. 16.0 c. b. 19.5 d. 23.0 6. The mode is a. 23.0 c. 33.0 b. 31.0 d. Undefined 7. The Range is a. 35.0 c. 2 b. 31.0 d. 29 8. A study found that the mean song bout duration in the wet season is 12.59 minutes with a standard deviation of 5.31 minutes. Approximately what percentage of song bouts last between 12.59 minutes and 17.90 minutes? a. 34% c. 95% b. 68% d. 99.7% 9. Given the following MINITAB results from the Describe command: Descriptive Statistics: Time to Finish Variable N N* Mean SE Mean StDev Minimum Q1 Median Q3 Maximum Time to Finish 15 0 20.73 1.34 5.20 8.00 17.00 21.00 25.00 28.00 The standard deviation is a. 20.73 c. 5.20 b. 1.34 d. 21.00 10. The standard deviation can take on negative values. a. True b. False...
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Answer_Quiz_3_Form_A - a. 15.6 c. 22.7 b. 21.0 d. 18.3 5....

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