1-20chapter stats

A qualitative b quantitative c ratio d interval aacsb

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Unformatted text preview: ___. A. sample B. frame C. census D. population AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Population 45. _____ refers to describing the important aspects of a set of measurements. A. Statistical Process Control B. Runs plot C. Descriptive statistics D. Times Series plot AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Descriptive Statistics 1-26 Chapter 01 - An Introduction to Business Statistics 46. In situations when it is not possible to number all of the units in a population, we often use a _____ sample to approximate a random sample. A. random with replacement B. systematic C. random without replacement D. statistical AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sample 47. A runs plot with an erratic pattern would indicate that the process is _____. A. in control B. out of control C. random D. fluctuating AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Process/Statistical Control 48. If a unit is placed back into the population after being selected for a sample, we are sampling _____. A. without replacement B. during replacement C. with replacement D. consistently AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sample 1-27 Chapter 01 - An Introduction to Business Statistics 49. A _____ is used to help select items for a random sample. A. runs plot B. qualitative variable C. ratio variable D. random number table AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Easy Topic: Sample 50. A process that is in statistical control does not necessarily imply that the process is __________. A. statistically random B. using a quantitative variable C. observational D. capable AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Hard Topic: Process/Statistical Control 51. A consumer's yes/no reply to a survey question is what type of variable? A. Qualitative B. Ratio C. Random D. Quantitative AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Variable 1-28 Chapter 01 - An Introduction to Business Statistics 52. The change in daily price of a stock is what type of variable? A. Qualitative B. Ordinal C. Random D. Quantitative AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Variable 53. ______ is a type of sampling method. A. Systematic B. Experimental C. Observational D. Process AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Medium Topic: Sample 54. In a voluntary response sample, what types of opinions are usually expressed? A. Impartial B. Random C. Strong D. Cross-sectional AACSB: Reflective Thinking Bloom's: Knowledge Difficulty: Hard Topic: Sample 1-29 Chapter 01 - An Introduction to Business Statistics Chapter 02 Descriptive Statistics: Tabular and Graphical Methods True / False Questions 1. A stem-and-leaf display is a graphical portrayal of a data set that shows the data set's overall pattern of variation. True False 2. The relative frequency is the frequency of a class divided by the total number of measurements. True False 3. A bar chart is a graphic that can be used to depict qualitative data. True False 4. Stem-and-leaf displays and dot plots are useful for detecting outliers. True False 5. A scatter plot can be used to identify outliers. True False 6. When looking at the shape of the distribution using a stem-and-leaf, a distribution is skewed to the right when the left tail is shorter than the right tail. True False 7. When we wish to summarize the proportion (or fraction) of items in a class we use the frequency distribution for each class. True False 1-30 Chapter 01 - An Introduction to Business Statistics 8. When establishing the classes for a frequency table it is generally agreed that the more classes you use the better your frequency table will be. True False 9. The sample cumulative distribution function is non-decreasing. True False 10. A frequency table includes row and column percentages. True False Multiple Choice Questions 11. A(n) ______ is a graph of a cumulative distribution. A. Histogram B. Scatter plot C. Ogive plot D. Pie Chart 12. ________ can be used to study the relationship between two variables. A. Crosstabulation tables B. Frequency tables C. Cumulative frequency distributions D. Dot plots 13. Row or column percentages can be found in: A. Frequency tables B. Relative frequency tables C. Crosstabulation tables D. Cumulative frequency tables 1-31 Chapter 01 - An Introduction to Business Statistics 14. All of the following are used to describe quantitative data except the A. Histogram B. Stem and Leaf C. Dot Plot D. Pie Chart 15. An observation separated from the rest of the data is a(n) A. Absolute extreme B. Outlier C. Mode D. Quartile 16. Which of the following graphs is for qualitative data? A. Histogram B. Bar Chart C. Ogive plot D. Stem and leaf 17. A plot of the values of two variables is a _____ plot. A. Runs B. Scatter C. Dot D. Ogive plot 18. A Stem and Leaf display is best used to A. Provide a point estimate of the variabilit...
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This document was uploaded on 01/20/2014.

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