*************************************************************************************

QNT 275 Week 1 Apply Connect Week 1 Exercise

QNT 275T Apply Week 1 Connect® Exercise Week 1 Exercise

Which of the following is not a method of predictive analytics?

factor detection

outlier detection

bullet graphs

association learning

___________ refers to describing the important aspects of a set of measurements.

Cross-sectional analysis

Runs plot

Descriptive statistics

Time series analysis

Any characteristic of an element is called a ____________.

set

process

variable

D)census

A(n) ____________ variable can have values that indicate into which of several categories of a population it belongs.

qualitative

quantitative

ratio

interval

A ____________ variable can have values that are numbers on the real number line.

qualitative

quantitative

categorical

nominative

Jersey numbers of soccer players is an example of a(n) ___________ variable.

nominative

ordinal

interval

ratio

Which of the following is a quantitative variable?

the manufacturer of a cell phone

a person’s gender

mileage of a car

whether a person is a college graduate

whether a person has a charge account

Which of the following is a type of question used in survey research?

dichotomous

free response

rating

All of the other answers are correct.

___________ sampling is where we know the chance that each element will be included in the sample, which allows us to make statistical inferences about the sample population.

Convenience

Voluntary

Probability

Judgment

Which of the following is not a supervised learning technique in predictive analytics?

linear regression

factor analysis

decision trees

neural networks

______________ is the science of using a sample to make generalizations about the important aspects of a population.

Time series analysis

Descriptive statistics

Random sample

Statistical inference

The two types of quantitative variables are

ordinal and ratio.

interval and ordinal.

nominative and ordinal.

interval and ratio.

nominative and interval.

A Yes or No question is _____________.

dichotomous

evaluative

open-ended

systematic

Temperature (in degrees Fahrenheit) is an example of a(n) __________ variable.

nominative

ordinal

interval

ratio

A data set provides information about some group of individual _____________.

variables

elements

statistics

measurements

Examining all population measurements is called a_____________.

census

frame

sample

variable

__________ consists of a set of concepts and techniques that are used to describe populations and samples.

Traditional statistics

Random sampling

Data mining

Time series analysis

A ____________ is a set of assumptions about how sample data are selected and about the population from which the sample data are selected.

random sampling

statistical model

descriptive statistics

probability sampling

_________ is a necessary component of a runs plot.

Observation over time

Qualitative variable

Random sampling of the data

Cross-sectional data

Non-overlapping groups in random sampling of a population are called

clusters.

frames.

strata.

stages.

Which of the following is a categorical variable?

air temperature

bank account balance

daily sales in a store

whether a person has a traffic violation

value of company stock

_________ uses traditional or newer graphics to present visual summaries of business information.

Predictive analytics

Data mining

Association learning

Descriptive analytics

An identification of police officers by rank would represent a(n) ____________ level of measurement.

nominative

ordinal

interval

ratio

A set of all elements we wish to study is called a ____________.

sample

process

census

population

A sequence of operations that takes inputs and turns them into outputs is a ____________.

process

statistical inference

runs plot

random sampling

A _____ is a list of all the units in a population.

sample

frame

census

variable

College entrance exam scores, such as SAT scores, are an example of a(n) _____________ variable.

ordinal

ratio

nominative

interval

———————————————————————————————————

Review the glossary in your textbook in preparation for this assignment.

Complete the Week 1 Exercise in Connect.

Define Ratio Variable.

A variable having values that are numbers which reflect quantities or measurements.

A characteristic from a sample or population that can assume different values for individual elements (members) of the sample or population.

A quantitative variable such that ratios of its values are meaningful and for which there is an inherently defined zero value.

Facts and figures from which conclusions may be drawn, generally for a specific study or issue.

Define Inferential Statistics.

Efforts to mislead users of statistical information including biased sampling, misleading chart, table and descriptive measures, and inappropriate analysis or inappropriate interpretation of the results.

The process of using a sample of measurements/values to make generalizations about the important aspects of a population of measurements/values.

A sampling design in which we divide a population into subgroups that do not overlap, then select a random sample from each subgroup (stratum).

A sample selected in such a way that every element in the population has an equal chance of being selected.

Define Variable.

A characteristic from a sample or population that can assume different values for individual elements (members) of the sample or population.

A variable having values that indicate into which of several categories the value for the respective sample or population element belongs.

Data collected over several time periods.

A variable having values that are numbers which reflect quantities or measurements.

Define Stratified Sampling.

Efforts to mislead users of statistical information including biased sampling, misleading chart, table and descriptive measures, and inappropriate analysis or inappropriate interpretation of the results.

A sampling design in which we divide a population into subgroups that do not overlap, then select a random sample from each subgroup (stratum).

A qualitative variable value for which there is no ordering or ranking; data values are not numerical and fit into categories.

A qualitative variable value for which there is ordering or ranking.

Define Sample.

The process of organizing and describing important elements of a set of values.

A sample selected in such a way that every element in the population has an equal chance of being selected.

The process of using a sample of measurements/values to make generalizations about the important aspects of a population of measurements/values.

A subset of the elements in a population.

Define Ordinal Variable.

A quantitative variable such that ratios of its values are not meaningful and for which there is not an inherently defined zero value.

Facts and figures from which conclusions may be drawn, generally for a specific study or issue.

A quantitative variable such that ratios of its values are meaningful and for which there is an inherently defined zero value.

A qualitative variable value for which there is ordering or ranking.

Define Descriptive Statistics.

The process of using a sample of measurements/values to make generalizations about the important aspects of a population of measurements/values.

A sampling design in which we divide a population into subgroups that do not overlap, then select a random sample from each subgroup (stratum).

The process of organizing and describing important elements of a set of values.

A sample selected in such a way that every element in the population has an equal chance of being selected.

Define Random Sampling.

A sampling design in which we divide a population into subgroups that do not overlap, then select a random sample from each subgroup (stratum).

A sample selected in such a way that every element in the population has an equal chance of being selected.

A qualitative variable value for which there is no ordering or ranking; data values are not numerical and fit into categories.

Efforts to mislead users of statistical information including biased sampling, misleading chart, table and descriptive measures, and inappropriate analysis or inappropriate interpretation of the results.

Define Qualitative Variable.

A variable having values that indicate into which of several categories the value for the respective sample or population element belongs.

Data collected over several time periods.

The set of all elements about which we want to draw conclusions.

A subset of the elements in a population.

Define Interval Variable.

Facts and figures from which conclusions may be drawn, generally for a specific study or issue.

A quantitative variable such that ratios of its values are not meaningful and for which there is not an inherently defined zero value.

A quantitative variable such that ratios of its values are meaningful and for which there is an inherently defined zero value.

A characteristic from a sample or population that can assume different values for individual elements (members) of the sample or population.

Define Nominative or Nominal Variable.

A qualitative variable value for which there is ordering or ranking.

A quantitative variable such that ratios of its values are meaningful and for which there is an inherently defined zero value.

A qualitative variable value for which there is no ordering or ranking; data values are not numerical and fit into categories.

A quantitative variable such that ratios of its values are not meaningful and for which there is not an inherently defined zero value.

Define Data Set.

Facts and figures from which conclusions may be drawn, generally for a specific study or issue

A variable having values that indicate into which of several categories the value for the respective sample or population element belongs.

A variable having values that are numbers which reflect quantities or measurements.

A characteristic from a sample or population that can assume different values for individual elements (members) of the sample or population.

Define Unethical Statistical Practices.

A quantitative variable such that ratios of its values are not meaningful and for which there is not an inherently defined zero value.

A qualitative variable value for which there is no ordering or ranking; data values are not numerical and fit into categories.

A qualitative variable value for which there is ordering or ranking.

Efforts to mislead users of statistical information including biased sampling, misleading chart, table and descriptive measures, and inappropriate analysis or inappropriate interpretation of the results.

Define Population.

The process of using a sample of measurements/values to make generalizations about the important aspects of a population of measurements/values.

The set of all elements about which we want to draw conclusions.

The process of organizing and describing important elements of a set of values.

A subset of the elements in a population.

Define Time Series Data.

The set of all elements about which we want to draw conclusions.

Data collected over several time periods.

The process of organizing and describing important elements of a set of values.

A subset of the elements in a population.

Define Quantitative Variable.

A variable having values that are numbers which reflect quantities or measurements.

A variable having values that indicate into which of several categories the value for the respective sample or population element belongs.

Data collected over several time periods.

The set of all elements about which we want to draw conclusions.