Research Methods and Statistics A Critical Thinking Approach 5th Edition by Sherri L. Jackson - Test Bank Instant Download - Complete Test Bank With Answers Sample Questions Are Posted Below Multiple Choice 1. A table in which all of the scores are listed along with the frequency with which each occurs …
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Research Methods and Statistics A Critical Thinking Approach 5th Edition by Sherri L. Jackson – Test Bank
Instant Download – Complete Test Bank With Answers
Sample Questions Are Posted Below
| Multiple Choice |
1. A table in which all of the scores are listed along with the frequency with which each occurs is a _____.
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2. A table in which the scores are grouped into intervals and listed along with the frequency of scores in each interval is a _____.
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3. A categorical variable for which each value represents a discrete category is a _____ variable.
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4. A variable for which the scores represent a change in quantity is a _____ variable.
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5. A graphical representation of a frequency distribution in which vertical bars are centered above each category along the x-axis and are separated from each other by a space is a _____.
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6. A graphical representation of a frequency distribution in which vertical bars centered above scores on the x-axis touch each other is a _____.
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7. A line graph of the frequencies of individual scores is a _____.
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8. _____ is to organizing data using a table as _____ is to organizing data using a figure.
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9. Bar graphs are to _____ as frequency polygons are to _____.
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10. Qualitative variable is to quantitative variable as ____ is to _____.
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11. A number that characterizes the “middleness” of an entire distribution is _____.
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12. The arithmetic average of a distribution is the _____.
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13. Seven students reported the following individual earnings from their sale of wrapping paper: $7, $13, $3, $5, $2, $9, and $3. In this distribution of individual earnings, the mean is _____ the mode and _____ the median.
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14. During the past year, Cindy and Bobby each read 2 books, but Greg read 25, Jan read 12, and Marcia read 9. The median number of books read by these individuals was
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15. The middle score in a distribution after the scores have been arranged from highest to lowest or lowest to highest is the _____.
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16. When Ms. Jones calculated her students’ accounting test scores, she noticed that one student had an extremely low score. Which measure of central tendency should not be used in this situation?
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17. Imagine that 86,999 people who are penniless live in Centerville. Bill Gates, whose net worth is $87,000,000,000, moves to Centerville. Now the mean net worth in this town is _____ and the median net worth is _____.
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18. Arithmetic average is to _____ as score occurring with the greatest frequency is to _____.
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19. Mode is to _____ and median is to _____.
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20. A distribution can have more than one ____ but can have only one _____.
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21. Which of the following is a disadvantage of using the range as a measure of variation?
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22. The calculation of the average deviation differs from the calculation of the standard deviation in that when calculating the average deviation the difference scores are
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23. Imagine that distribution A contains the following scores: 3, 4, 5, 6, 7. Imagine that distribution B contains the following scores: 1, 3, 5, 8, 10. Distribution A has a _____ standard deviation and a _____ average deviation in comparison to distribution B.
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24. Which of the following is FALSE?
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25. If the shape of a frequency distribution is lopsided, with a long tail projecting longer to the right than to the left, how would the distribution be skewed?
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26. A z-score is most affected by the
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27. If Joe scored 25 on a test with a mean of 20 and a standard deviation of 5 what is his z-score?
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28. Sue took a test in both biology and math last week. The biology test had a mean of 70 and a standard deviation of 7 whereas the math test had a mean of 75 and a standard deviation of 10. Sue scored a 76 on the biology test and a 76 on the math test. On which test did she do better in comparison to the rest of the class?
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29. Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What proportion of faculty consumes an amount between 4 and 6 cups?
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30. Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. What is the percentile rank for an individual who consumed 8 cups of coffee per day?
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31. Faculty in the psychology department at State University consume an average of 5 cups of coffee per day with a standard deviation of 1.5. The distribution is normal. How many cups of coffee would an individual at the 25th percentile drink per day?
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32. If the average height for women is normally distributed with a mean of 65 inches and a standard deviation of 2.5 inches, then approximately 95% of all women should be between _____ and _____ inches in height.
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33. Rich’s first psychology exam score is +1 standard deviation from the mean in a normal distribution. The test has a mean of 60 and a standard deviation of 6. Rich’s percentile rank would be approximately
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34. Approximately what percentage of scores are between z=1 and z=2?
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35. Karen’s first psychology exam score is ‑1 standard deviation from the mean in a normal distribution. The test has a mean of 75 and a standard deviation of 5. Karen’s percentile rank would be
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36. In a psychology class of 100 students, test scores are normally distributed with a mean of 80 and a standard deviation of 5. Approximately what percentage of students have scores between 70 and 90?
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| Subjective Short Answer |
| 37. Draw the frequency polygon for the following distribution (there are 30 scores in the distribution). In addition, calculate the mean, median, and mode for the distribution.
48, 50, 53, 59, 59, 63, 63, 67, 67, 67, 72, 72, 72, 78, 78, 78, 78, 85, 85, 85, 85, 85, 90, 90, 90, 90, 95, 95, 98, 100
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38. Explain the difference between qualitative and quantitative variables noting the relationship of nominal, ordinal, interval, and ratio data to these terms.
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39. Explain the difference in proper use between a bar graph and a histogram.
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40. Calculate the mean, median, and mode for the following sample: 2, 2, 6, 9, 10, 11, 15, 17, 18, 20.
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41. For a hypothetical normal distribution of test scores, approximately 95% fall between 38 and 62, 2.5% are below 38, and 2.5% are above 62. Given this information, (a) the mode = _________ and (b) the standard deviation = _________.
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| 42. Calculate S (standard deviation) and A.D. (average deviation) for the following sample. 2, 2, 6, 9, 10, 10, 15, 18, 18, 20.
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43. Draw a positively skewed distribution and a negatively skewed distribution noting where the mean, median, and mode would fall with respect to each other in these distributions.
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44. Tom, Tina, & Tori took a verbal aptitude test. The test was normally distributed with a mean of 70 and s = 15. Complete the following table.
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45. Students in the psychology department consume an average of 5 cups of coffee per day with a standard deviation of 1.75 cups. The number of cups of coffee consumed is normally distributed.
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46. Draw two distributions with the same standard deviations but different means.
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Original price was: $30.00.$20.00Current price is: $20.00.
