Statistics Test
The
relationship between two variables is of two types. One is Linear, the other
is:
a. Positive
b. Curvilinear
c. Negative
In
which chart is the data organized in a descending order and includes a trend
line as well?
a. Pareto
chart
b. Area
chart
c. Side-by-side
bar chart
d. Scatter
plot
Standard
deviation is the most common measure of __________.
a. dispersion
b. central
tendency
c. clustering
Statistics
can be divided into 2 broad sections. One is Descriptive Statistics, the other
is:
a. Inferential
Statistics
b. Cumulative
Statistics
c. Differential
Statistics
d. Analytical
Statistics
In
correlation analysis, we designate one variable as an independent variable and
the other as a dependent variable.
a. True
b. False
A
study finds that children who spend more hours in TV viewing score lower class
grades in school. This correlation is an example of:
a. Positive
correlation
b. Negative
correlation
c. No
correlation
When
you are figuring out How to collect, process and analyze data, you are:
a. Designing
your research
b. Analyzing
your data
c. Reporting
new findings
d. Constructing
a hypothesis
How
is a Type II error symbolized as?
a. ß
b. α
c. Δ
d. ∞
Of
the three Measures of central tendency, which one is the most sensitive to
outliers?
a. Mean
(Arithmetic)
b. Median
c. Mode
In
the Sampling Process, soon after identifying the sampling method comes the
process of:
a. determining
your sample size
b. sampling
and data collection
c. reviewing
your sampling process
Population
parameters include the following except:
a. population
mean
b. population
variance
c. population
standard deviation
d. population
hypothesis
Prior
experience and situational analysis are important in making decisions when a
person does not have enough information to calculate the probability of
occurrence of an event.
a. True
b. False
The
middle point of a data set arranged in an array from the smallest to the
largest value is called:
a. mean
b. median
c. mode
It
is important to categorize your data and data can be categorized into the
following categories:
a. ordinal
b. interval
c. classical
d. ratio
e. a,b
and d
What
will be the potential sampling frame(s) for a survey whose target population is
infant children?
a. medical
facilities (such as hospitals and clinics) recording births within the past 12
months.
b. households
whose occupants include infants under 12 months old.
c. Official
school directories
d. Both
a and b
Which
of the following is not a research ethic?
a. Transparency
b. Anonymity
c. Risk
of harm
d. Informed
consent
The
Causal Research design is used when the ______ factor about some phenomenon or
issue is being researched.
a. Why
b. How
c. What
d. When
In
which of the following fields is ANOVA used to make comparisons amongst groups?
a. In
product research and development.
b. In
education and training.
c. In
human factor analysis.
d. All
of the above
Compute
the Range for the given hourly wages (in $) of janitors:
8,
10,12, 14, 16, 18
a. $12
b. $10
c. $14
d. $6
The
_____ is a useful tool for assessing whether the means of two groups of
variable are statistically different from each other.
a. sample
mean
b. T-test
c. null
hypothesis
d. alternative
hypothesis
The
components of Simple Linear Regression model include the following except:
a. The
slope
b. The
random error term
c. The
intercept
d. The
dependent variable
The
following are data collection methods except:
a. Surveys
b. Observation
c. Sampling
d. Designed
experiments
What
is the probability of occurrence of a Type I error referred to as?
a. Level
of significance
b. Level
of error
c. Level
of probability
d. Level
of acceptance
The
idea behind reviewing existing knowledge is:
a. to
select the right research study tools.
b. to
be guided by previous research studies.
c. to
be careful of not repeating the errors of previous studies.
d. All
of the above
Cross
tabulation of data is possible through the following:
a. Contingency
tables
b. Scatter
plot
c. Side-by-side
bar chart
d. All
of the above
The
following statements regarding a Hypothesis are true except:
a. A
hypothesis is an educated guess.
b. It
is an assumption based on relationship between two or more variables.
c. It
helps to design your research.
d. It
can be true or false.
The
advantage(s) of Scientific Research Method is/are:
a. It
investigates the problem exhaustively
b. It
is a systematic, controlled and empirical investigation of hypothesis.
c. a
and b
d. None
of the above
How
many types of major sampling methods are there?
a. 3
b. 2
c. 4
d. 5
Which
of the following is not an example of hypothesis?
a. What
percentage of people pass their driving test in the first attempt?
b. The
average age of cell phone users city-wide is 40 years.
c. The
average salary of teachers in the entire school district is $50,000.
d. A
public health official believes that 60% of all elderly people have received
flu examination in the previous year.
Probability
proves useful:
a. in
understanding the probability of occurrence of an event or a phenomenon.
b. in
deducing larger implications from a given data.
c. Both
a and b
d. Neither
a nor b
If
a company's production is consistently going down due to some reasons, which
technique or method would you employ to analyze those reasons/causes?
a. Simple
linear regression
b. Multiple
linear regression
c. Critical
analysis
d. Correlation
analysis
Ordinal
numbers or data are primarily concerned with:
a. comparisons
b. rankings
c. classifications
d. predictions
The
events that are not affected by other outcomes are called:
a. Probable
events
b. Improbable
events
c. Independent
events
d. None
of the above
This
question is based upon the figure shown below
Describe
the relationship between the two variables in the above given scatter plot.
a. Positive
b. Negative
c. No
correlation
d. Weak
negative
Which
of these can be used as source(s) of data collection?
a. Magazines
and Newspapers
b. Census
Bureau
c. Television
d. a
& b
Arranging
your target population in an ordered scheme from which participants or items
are chosen at regular intervals is an example of:
a. Simple
random sampling
b. Systematic
sampling
c. Stratified
sampling
This
question is based upon the figure shown below
In
the above image it is stated that:
a. the
average of the given data is not 40.
b. the
alternative hypothesis is that the mean of the given data is 40.
c. the
null hypothesis is that the mean value of the given data is 40.
Once
a sample is drawn from the population, how close the sample is to the larger
population is to be determined. This is known as:
a. Sampling
error
b. Variance
error
c. Statistical
error
Cluster
sampling and Stratified sampling form part of Probability Sampling Methods.
a. True
b. False
Probability
can be determined by:
a. Subjective
Evidence
b. Prior
Knowledge
c. Future
Knowledge
d. a
and b
e. a
and c