Engineering Data Analysis Exam with
100% Correct Answers
Statistics - ANS-science that deals with the collection, organization, presentation,
analysis, and interpretation of data in order to be able to draw judgments or conclusions
that help in the decision-making process.
Descriptive Statistics - ANS-deals with the procedures that organize, summarize and
describe quantitative data. It seeks merely to describe data.
Inferential Statistics - ANS-deals with making a judgment or a conclusion about a
population based on the findings from a sample that is taken from the population.
Population or Universe - ANS-refers to the totality of objects, persons, places, things
used in a particular study. All members of a particular group of objects (items) or people
(individual), etc. which are subjects or respondents of a study.
Sample - ANS-any subset of population or few members of a population.
Data - ANS-facts, figures and information collected on some characteristics of a
population or sample. These can be classified as qualitative or quantitative data.
Ungrouped/Raw Data - ANS-data which are not organized in any specific way. They are
simply the collection of data as they are gathered.
Grouped Data - ANS-raw data organized into groups or categories with corresponding
frequencies.
frequency distribution - ANS-the data is referred to as
Parameter - ANS-the descriptive measure of a characteristic of a population.
Statistic - ANS-a measure of a characteristic of sample.
Constant - ANS-a characteristic or property of a population or sample which is common
to all members of the group.
Variable - ANS-a measure or characteristic or property of a population or sample that
may have a number of different values. It differentiates a particular member from the
rest of the group. It is the characteristic or property that is measured, controlled, or
, manipulated in research. They differ in many respects, most notably in the role they are
given in the research and in the type of measures that can be applied to them
Collection of the data - ANS-the first step in conducting statistical inquiry
data gathering - ANS-a systematic method of collecting and measuring data from
different sources of information in order to provide answers to relevant questions. This
involves acquiring information published literature, surveys through questionnaires or
interviews, experimentations, documents and records, tests or examinations and other
forms of data gathering instruments.
investigator - ANS-person who conducts the inquiry
enumerator - ANS-one who helps in collecting information
respondent - ANS-information is collected from
TRUE - ANS-True or False. Data can be primary or secondary.
Wessel - ANS-According to ----, "Data collected in the process of investigation are
known as primary data."
M.M. Blair - ANS-According to ----, "Secondary data are those already in existence for
some other purpose than answering the question in hand."
retrospective study, observational study and a designed experiment - ANS-three basic
methods of collecting data
retrospective study - ANS-study would use the population or sample of the historical
data which had been archived over some period of time. It may involve a significant
amount of data but those data may contain relatively little useful information about the
problem, some of the relevant data may be missing, recording errors or transcription
may be present, or those other important data may not have been gathered and
archived.
observational study - ANS-process or population is observed and disturbed as little as
possible, and the quantities of interests are recorded.
designed experiment - ANS-deliberate or purposeful changes in the controllable
variables of the system or process is done. The resulting system output data must be
observed, and an inference or decision about which variables are responsible for the
observed changes in output performance is made.
Survey - ANS-a method of asking respondents some well-constructed questions. It is an
efficient way of collecting information and easy to administer wherein a wide variety of
100% Correct Answers
Statistics - ANS-science that deals with the collection, organization, presentation,
analysis, and interpretation of data in order to be able to draw judgments or conclusions
that help in the decision-making process.
Descriptive Statistics - ANS-deals with the procedures that organize, summarize and
describe quantitative data. It seeks merely to describe data.
Inferential Statistics - ANS-deals with making a judgment or a conclusion about a
population based on the findings from a sample that is taken from the population.
Population or Universe - ANS-refers to the totality of objects, persons, places, things
used in a particular study. All members of a particular group of objects (items) or people
(individual), etc. which are subjects or respondents of a study.
Sample - ANS-any subset of population or few members of a population.
Data - ANS-facts, figures and information collected on some characteristics of a
population or sample. These can be classified as qualitative or quantitative data.
Ungrouped/Raw Data - ANS-data which are not organized in any specific way. They are
simply the collection of data as they are gathered.
Grouped Data - ANS-raw data organized into groups or categories with corresponding
frequencies.
frequency distribution - ANS-the data is referred to as
Parameter - ANS-the descriptive measure of a characteristic of a population.
Statistic - ANS-a measure of a characteristic of sample.
Constant - ANS-a characteristic or property of a population or sample which is common
to all members of the group.
Variable - ANS-a measure or characteristic or property of a population or sample that
may have a number of different values. It differentiates a particular member from the
rest of the group. It is the characteristic or property that is measured, controlled, or
, manipulated in research. They differ in many respects, most notably in the role they are
given in the research and in the type of measures that can be applied to them
Collection of the data - ANS-the first step in conducting statistical inquiry
data gathering - ANS-a systematic method of collecting and measuring data from
different sources of information in order to provide answers to relevant questions. This
involves acquiring information published literature, surveys through questionnaires or
interviews, experimentations, documents and records, tests or examinations and other
forms of data gathering instruments.
investigator - ANS-person who conducts the inquiry
enumerator - ANS-one who helps in collecting information
respondent - ANS-information is collected from
TRUE - ANS-True or False. Data can be primary or secondary.
Wessel - ANS-According to ----, "Data collected in the process of investigation are
known as primary data."
M.M. Blair - ANS-According to ----, "Secondary data are those already in existence for
some other purpose than answering the question in hand."
retrospective study, observational study and a designed experiment - ANS-three basic
methods of collecting data
retrospective study - ANS-study would use the population or sample of the historical
data which had been archived over some period of time. It may involve a significant
amount of data but those data may contain relatively little useful information about the
problem, some of the relevant data may be missing, recording errors or transcription
may be present, or those other important data may not have been gathered and
archived.
observational study - ANS-process or population is observed and disturbed as little as
possible, and the quantities of interests are recorded.
designed experiment - ANS-deliberate or purposeful changes in the controllable
variables of the system or process is done. The resulting system output data must be
observed, and an inference or decision about which variables are responsible for the
observed changes in output performance is made.
Survey - ANS-a method of asking respondents some well-constructed questions. It is an
efficient way of collecting information and easy to administer wherein a wide variety of
