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25 Cards in this Set
- Front
- Back
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1. A population is a collection of all individuals, objects, or measurements of interest.
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TRUE
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2. Statistics are used as a basis for making decisions.
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TRUE
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3. A listing of 100 family annual incomes is an example of statistics.
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FALSE
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4. The average number of passengers on commercial flights between Chicago and New York City is an example of a statistic.
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TRUE
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5. Statistics are used to report the summary results of market surveys.
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TRUE
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6. A sample is a portion or part of the population of interest.
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TRUE
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7. To infer something about a population, we usually take a sample from the population.
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TRUE
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8. Descriptive statistics are used to find out something about a population based on a sample.
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FALSE
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9. There are four levels of measurement-qualitative, quantitative, discrete, and continuous.
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FALSE
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10. The ordinal level of measurement is considered the "lowest" level of measurement.
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FALSE
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11. A store asks shoppers for their zip code to identify market areas. Zip codes are an example of ratio data.
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FALSE
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12. An ordinal level of measurement implies some sort of ranking.
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TRUE
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13. Data measured on a nominal scale can only be classified into categories.
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TRUE
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14. The terms descriptive statistics and inferential statistics can be used interchangeably.
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FALSE
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15. A marketing research agency was hired to test a new DVD player. Consumers rated it outstanding, very good, fair or poor. The level of measurement for this experiment is ordinal.
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TRUE
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16. The Union of Electrical Workers of America with 9,128 members polled 362 members about a new wage package that will be submitted to management. The population is the 362 members.
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FALSE
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17. The CIA World Factbook cited these numbers for the United States:· Birthrate is 14.14 births per 1,000 population· Average life expectancy for females is 80 years· Approximately 290 million persons residing in the United StatesEach of these numbers is referred to as statistic.
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TRUE
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18. If we select 100 persons from 25,000 registered voters and question them about candidates and issues, the 100 persons are referred to as the population.
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FALSE
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19. Statistics is defined as a body of techniques used to facilitate the collection, organization, presentation, analysis and interpretation of information for the purpose of making better decisions.
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TRUE
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20. Categorizing voters as Democrats, Republicans and Independents is an example of interval level measurement.
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FALSE
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21. The order that runners finish in a race would be an example of continuous data.
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FALSE
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22. Based on a sample of 3,000 people, the civilian unemployment rate in the United States was 5.5%. 5.5% is referred to as a statistic.
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TRUE
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23. The principal difference between the interval and ratio scale is that the ratio scale has a meaningful zero point.
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TRUE
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24. The branch of mathematics used to facilitate the collection, organization, presentation, analysis and interpretation of numerical information is referred to as statistics.
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TRUE
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25. The number of children in a family is a discrete variable.
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TRUE
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