BANA: Chapter 1 – Flashcards
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Methods for developing useful decision-making information from large data bases is known as a. data manipulation b. data monitoring c. data base conversion d. data mining
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d. data mining
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The process of capturing, storing, and maintaining data is known as a. data manipulation b. data monitoring c. data warehousing d. category analysis
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c. data warehousing
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The subject of data mining deals with a. methods for developing useful decision-making information from large data bases b. keeping data secure so that unauthorized individuals cannot access the data c. computational procedure for data analysis d. computing the average for data
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a. methods for developing useful decision-making information from large data bases
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In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the a. ordinal scale b. nominal scale c. ratio scale d. interval scale
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b. nominal scale
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The nominal scale of measurement has the properties of the a. ordinal scale b. only interval scale c. ratio scale d. None of these alternatives is correct.
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d. None of these alternatives is correct.
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The scale of measurement that is used to rank order the observation for a variable is called the a. ratio scale b. ordinal scale c. nominal scale d. interval scale
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b. ordinal scale
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Some hotels ask their guests to rate the hotel's services as excellent, very good, good, and poor. This is an example of the a. ordinal scale b. ratio scale c. nominal scale d. interval scale
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a. ordinal scale
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The ordinal scale of measurement has the properties of the a. ratio scale b. interval scale c. nominal scale d. ratio and interval scales
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c. nominal scale
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The ratio scale of measurement has the properties of a. only the ordinal scale b. only the nominal scale c. the rank scale d. the interval scale
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d. the interval scale
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Temperature is an example of a variable that uses a. the ratio scale b. the interval scale c. the ordinal scale d. either the ratio or the ordinal scale
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b. the interval scale
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The interval scale of measurement has the properties of the a. ratio and nominal scales b. ratio and ordinal scales c. ratio scale d. None of these alternatives is correct.
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d. None of these alternatives is correct.
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Arithmetic operations are inappropriate for a. the ratio scale b. the interval scale c. both the ratio and interval scales d. the nominal scale
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d. the nominal scale
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Income is an example of a variable that uses the a. ratio scale b. interval scale c. nominal scale d. ordinal scale
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a. ratio scale
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Data obtained from a nominal scale a. must be alphabetic b. can be either numeric or nonnumeric c. must be numeric d. must rank order the data
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b. can be either numeric or nonnumeric
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The scale of measurement that has an inherent zero value defined is the a. ratio scale b. nominal scale c. ordinal scale d. interval scale
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a. ratio scale
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Arithmetic operations are appropriate for a. only the ratio scale b. only the interval scale c. the nominal scale d. None of these alternatives is correct.
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d. None of these alternatives is correct.
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Quantitative data refers to data obtained with a(n) a. ordinal scale b. nominal scale c. either interval or ratio scale d. only interval scale
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c. either interval or ratio scale
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Data a. are always be numeric b. are always nonnumeric c. are the raw material of statistics d. None of these alternatives is correct.
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c. are the raw material of statistics
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The entities on which data are collected are a. elements b. populations c. samples d. None of these alternatives is correct.
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a. elements
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The set of measurements collected for a particular element is (are) called a. variables b. observations c. samples d. None of these alternatives is correct.
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b. observations
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A characteristic of interest for the elements is called a(n) a. sample b. data set c. variable d. None of these alternatives is correct.
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c. variable
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All the data collected in a particular study are referred to as the a. inference b. variable c. data set d. None of these alternatives is correct.
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c. data set
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Another name for "observations" is a. views b. variables c. cases d. None of these alternatives is correct.
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c. cases
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Quantitative data a. are always nonnumeric b. may be either numeric or nonnumeric c. are always numeric d. None of these alternatives is correct.
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c. are always numeric
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In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a a. categorical variable b. quantitative variable c. categorical or quantitative variable, depending on how the respondents answered the question d. None of these alternatives is correct.
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a. categorical variable
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The number of cases will always be the same as the number of a. variables b. elements c. data sets d. data
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b. elements
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Categorical data a. must be numeric b. must be nonnumeric c. cannot be numeric d. may be either numeric or nonnumeric
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d. may be either numeric or nonnumeric
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Categorical data a. indicate either how much or how many b. cannot be numeric c. are labels used to identify attributes of elements d. must be nonnumeric
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c. are labels used to identify attributes of elements
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Ordinary arithmetic operations are meaningful a. only with categorical data b. only with quantitative data c. either with quantitative or categorical data d. None of these alternatives is correct.
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b. only with quantitative data
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Social security numbers consist of numeric values. Therefore, social security is an example of a. a quantitative variable b. either a quantitative or a categorical variable c. an exchange variable d. a categorical variable
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d. a categorical variable
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Temperature is an example of a. a categorical variable b. a quantitative variable c. either a quantitative or categorical variable d. neither a quantitative nor categorical variable
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b. a quantitative variable
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For ease of data entry into a university database, 1 denotes that the student is an undergraduate and 2 indicates that the student is a graduate student. In this case data are a. categorical b. quantitative c. either categorical or quantitative d. neither categorical nor quantitative
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a. categorical
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Arithmetic operations are inappropriate for a. categorical data b. quantitative data c. both categorical and quantitative data d. large data sets
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a. categorical data
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Income is an example of a. categorical data b. either categorical or quantitative data c. dollar data d. quantitative data
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d. quantitative data
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Data collected at the same, or approximately the same, point in time are a. time series data b. approximate time series data c. crossectional data d. approximate data
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c. crossectional data
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Data collected over several time periods are a. time series data b. time controlled data c. crossectional data d. time crossectional data
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a. time series data
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Statistical studies in which researchers do not control variables of interest are a. experimental studies b. uncontrolled experimental studies c. not of any value d. observational studies
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d. observational studies
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Statistical studies in which researchers control variables of interest are a. experimental studies b. control observational studies c. non-experimental studies d. observational studies
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a. experimental studies
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The summaries of data, which may be tabular, graphical, or numerical, are referred to as a. inferential statistics b. Data and Statistics c. statistical inference d. report generation
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b. Data and Statistics
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Statistical inference a. refers to the process of drawing inferences about the sample based on the characteristics of the population b. is the same as Data and Statistics c. is the process of drawing inferences about the population based on the information taken from the sample d. is the same as a census
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c. is the process of drawing inferences about the population based on the information taken from the sample
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The collection of all elements of interest in a particular study is a. the population b. the sampling c. statistical inference d. Data and Statistics
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a. the population
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A portion of the population selected to represent the population is called a. statistical inference b. Data and Statistics c. a census d. a sample
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d. a sample
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One hundred students from a large university were asked about their opinion on the new health care program. The 100 represents a. a sample b. a population c. statistical inference d. data and statistics
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a. a sample
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In a sample of 400 students in a university, 80, or 20%, are Business majors. Based on the above information, the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of a. a sample b. a population c. statistical inference d. Data and Statistics
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c. statistical inference
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Five hundred residents of a city are polled to obtain information on voting intentions in an upcoming city election. The five hundred residents in this study is an example of a(n) a. census b. sample c. observation d. population
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b. sample
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A statistics professor asked students in a class their ages. On the basis of this information, the professor states that the average age of all the students in the university is 24 years. This is an example of a. a census b. Data and Statistics c. an experiment d. statistical inference
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d. statistical inference
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The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of a. a sample b. Data and Statistics c. statistical inference d. an experiment
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b. Data and Statistics
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The Department of Transportation of a city has noted that on the average there are 17 accidents per day. The average number of accidents is an example of a. Data and Statistics b. statistical inference c. a sample d. a population
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a. Data and Statistics
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The process of analyzing sample data in order to draw conclusions about the characteristics of a population is called a. Data and Statistics b. statistical inference c. data analysis d. data summarization
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b. statistical inference
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In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent a. categorical data b. quantitative data c. either categorical or quantitative data d. since the numbers are sequential, the data is quantitative
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a. categorical data
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The average age in a sample of 190 students at City College is 22. As a result of this sample, it can be concluded that the average age of all the students at City College a. must be more than 22, since the population is always larger than the sample b. must be less than 22, since the sample is only a part of the population c. could not be 22 d. could be larger, smaller, or equal to 22
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d. could be larger, smaller, or equal to 22
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Since a sample is a subset of the population, the sample mean a. is always smaller than the mean of the population b. is always larger than the mean of the population c. must be equal to the mean of the population d. can be larger, smaller, or equal to the mean of the population
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d. can be larger, smaller, or equal to the mean of the population
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The scale of measurement that is simply a label for the purpose of identifying the attribute of an element is the a. ratio scale b. nominal scale c. ordinal scale d. interval scale
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b. nominal scale
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In a data set, the number of elements will always be the same as the number of a. independent variables b. observations c. data points d. dependent variables
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b. observations
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Which of the following is not a scale of measurement? a. nominal b. ordinal c. interval d. primal
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d. primal
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Which of the following is a scale of measurement? a. ratio b. primal c. divisional d. remedial
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a. ratio
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Which scale of measurement can be either numeric or nonnumeric? a. nominal b. ratio c. interval d. None of these alternatives is correct.
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a. nominal
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Which of the following variables use the ratio scale of measurement? a. social security number b. temperature c. gender d. income
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d. income
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The weight of a candy bar in ounces is an example of a. categorical data b. either categorical or quantitative data c. weight data d. quantitative data
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d. quantitative data
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The height of a building, measured in feet, is an example of a. categorical data b. either categorical or quantitative data c. feet data d. quantitative data
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d. quantitative data
