M4

Question 1

The three essential aspects of the knowledge
acquisition process:

Answer 1

1. The choice of the experimental method
2. The analysis of results
3. The progressive acquisition of knowledge

Question 2

branch of statistics that includes methods for
organizing and summarizing data.

Answer 2

Descriptive Statistics

Question 3

science that deals with the collection, organization,
presentation, analysis, and interpretation
of data in order be able to draw judgments
or conclusions that help in the decisionmaking process.

Answer 3

Statistics

Question 4

first step in conducting statistical inquiry.

Answer 4

Collection of the data

Question 5

Tendency for samples to differ from the corresponding population as a result of systematic exclusion of some part of the population

Answer 5

Selection bias

Question 6

A study which the investigator observes
how a response variable behaves when
one or more explanatory variables, also
called factors, are manipulated.

Answer 6

Experiment

Question 7

descriptive measure of a characteristic of a population

Answer 7

Parameter

Question 8

a data collection procedure
that occurs in controlled conditions to identify
and understand causal (cause and effect)
relationship between variables

Answer 8

Experimentation

Question 9

refers to the totality of
objects, persons, places, things used in a particular
study

Answer 9

Population or Universe

Question 10

are raw data organized into groups
or categories with corresponding frequencies.
Organized in this manner, the data is referred to as
frequency distribution.

Answer 10

Grouped Data

Question 11

Tendency for samples
to differ from the corresponding population
because data are not obtained from all
individuals selected for inclusion in the
sample.

Answer 11

Nonresponse Bias

Question 12

Those variables that
have values that are controlled by the
experimenter. Explanatory variables are also
called factors.

Answer 12

Explanatory Variables

Question 13

are homogeneous
groups of population units, that is, units in a
given stratum are similar in some important
characteristics, whereas those in different
strata differ in those characteristics

Answer 13

Stratified Random Sampling