HS 4510 SELF QUIZ QUESTIONS & ANSWERS

HS 4510 SELF QUIZ QUESTIONS & ANSWERS

Relating to relative frequencies, choose best answer:
Select one:
a.
The sum of relative frequencies is 100%
b.
A relative frequency describes one element relative to all
c.
Categorical data can be described in relative frequencies
d.
All the above - Answer -d. All the above

True or False: observations of a random variable in a random experiment is termed as
trial.
Select one:
True
False - Answer -true

If you are calculating difference in means pre and post an intervention, you are
gathering:
Select one:
a.
nominal data
b.
ratio data
c.
interval data
d.
ordinal data - Answer -c. interval data

You are given the following sequence: K = {0, -2, -3, 6, 6, 0, 5}.
Calculate the following:




Select one:
a.
104
b.
114
c.
124

,d.
108 - Answer -a. 104

If you are comparing number of births to the number of pregnancies in a sample of
women, you will be gathering:
Select one:
a.
nominal data
b.
ratio data
c.
interval data
d.
ordinal data - Answer -b. ratio data


You are investigating the association of past falls with recent head injury in a group of
elderly patients admitted to a trauma unit in a regional hospital. One variable you
collected is "Past history of falls". State what is the scale of this variable?
Select one:
a.
Ratio variable
b.
Ordinal variable
c.
Interval variable
d.
Nominal variable - Answer -d. Nominal variable

Which of the below relates to inferential statistics?
Select one:
a.
modeling
b.
hypothesis testing
c.
prediction
d.
estimation
e.
all of the above - Answer -e. all of the above

Compared to parametric statistical methods, non-parametric methods:
Select one:
a.
have less assumptions

,b.
are less bound by the distribution of the outcome measure being investigated
c.
are less affected by the normality of the data
d.
all of the above
e.
none of the above - Answer -d. all of the above

The below table describes number of people found having hypertension in 2016 by
different regions. In which region, burden of having hypertension is the highest?
Region
Number of total population
Overall cases of hypertension
A
43,700
4,500
B
2,000
200
C
100,000
7,000
D
7,500
500
Select one:
a.
Region A
b.
Region B
c.
Region C
d.
Region D
e.
Not enough information to answer the question - Answer -a. Region A

The below table describes number of people found having hypertension in 2016 by
different regions. In which region, risk of having hypertension is the highest?
Region
Number of total population
Overall cases of hypertension
A
43,700
4,500

, B
2,000
200
C
100,000
7,000
D
7,500
500
Select one:
a.
Region A
b.
Region B
c.
Region C
d.
Region D
e.
Not enough information to answer the question - Answer -e. not enough information to
answer the question

True or False: You will be working with nominal data if you will be comparing blood type
groups.
Select one:
True
False - Answer -true

Census data:
Select one:
a.
are not representative of the overall general population
b.
include all members of a population of interest
c.
are similar to sample data
d.
include only interval or ratio scale variables - Answer -b. include all members of a
population of interest

State if true or false:
√[(x2)/y] = x/√y
Select one:
True
False - Answer -true