# Shared Flashcard Set

## Details

Stats test 1
N/A
31
Economics
02/11/2013

Term
 Nominal Scale
Definition
 In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of the
Term
 Ordinal Scale
Definition
 Some hotels ask their guests to rate the hotel's services as excellent, very good, good, and poor. This is an example of the
Term
 Ratio Scale
Definition
 The scale of measurement that has an inherent zero value defined is the
Term
 Data Set
Definition
 All the data collected in a particular study are referred to as the
Term
 Cases
Definition
 Another name for "observations" is
Term
 Quantative Data
Definition
 are always numeric
Term
 Categorical Variable
Definition
 In a questionnaire, respondents are asked to mark their gender as male or female. Gender is an example of a
Term
 Categorical Data
Definition
 are labels used to identify attributes of elements
Term
 Categorical Variable
Definition
 Social security numbers consist of numeric values. Therefore, social security is an example of
Term
 Quantative Data
Definition
 Income is an example of
Term
 Crosssectional Data
Definition
 Data collected at the same, or approximately the same, point in time are
Term
 Experimental Studies
Definition
 Statistical studies in which researchers control variables of interest are
Term
 The Population
Definition
 The collection of all elements of interest in a particular study is
Term
 Descriptive Statistics
Definition
 In a sample of 800 students in a university, 240, or 30%, are Business majors. The 30% is an example of
Term
 Statistical Inference
Definition
 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
Term
 could be larger, smaller, or equal to 22
Definition
 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
Term
 observations
Definition
 In a data set, the number of elements will always be the same as the number of
Term
 Nominal
Definition
 Which scale of measurement can be either numeric or nonnumeric?
Term
 Quantative Data
Definition
 The height of a building, measured in feet, is an example of
Term
 Population
Definition

 the collection of all items of interest in a particular study

Term
 both a pie chart and a bar chart
Definition
 Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)
Term
 categorical data
Definition
 A researcher is gathering data from four geographical areas designated: South = 1; North = 2; East = 3; West = 4. The designated geographical regions represent
Term
 longer tail to the left
Definition
 A histogram is said to be skewed to the left if it has a
Term
 histogram
Definition
 a graphical presentation of a frequency or relative frequency distribution
Term
 mean
Definition
 Which of the following provides a measure of central location for the data?
Term
 sample statistic
Definition
 A numerical value used as a summary measure for a sample, such as sample mean, is known as a
Term
 can be smaller, larger, or equal to the population parameter
Definition
 Since the population size is always larger than the sample size, then the sample statistic
Term
 the third quartile
Definition
 The 75th percentile is referred to as the
Term
 median
Definition
 The value which has half of the observations above it and half the observations below it is called the
Supporting users have an ad free experience!