8614 solved quiz autumn 202 28dec 2k2
As variability
due to chance decreases, the value of F will
stay the same b.
increase c. can’t tell from the given information d. decrease
increase
10 b. 0 c. 5 d.
20
So, for
your data set (5, 5, 5, 5), the standard deviation is: b. 0
A relationship
where the flow of the data points is best represented by a curve is called:
Linear positive
b. Linear relationship c. Nonlinear relationship d. Linear negative
Nonlinear
relationship
Which one of the
following is not probability sampling?
Systematic
sampling b. Stratified sampling c. Simple random sampling d. Judgment sampling
Judgment
sampling
The chi-square
test for goodness of fit uses sample data to test hypothesis about the
____________ of population distribution.
5a. standard
deviations b. proportions c. characteristics d. means
proportions
A hypothesis
under test is.
6a. Simple
hypothesis b. Composite hypothesis c. Alternative hypothesis d. Null hypothesis
Null
hypothesis
Graph of the
frequency distribution is known as,
7a. Sub-divided
bar chart b. Multiple bar chart c. None of these d. Histogram
Histogram
__ hypothesis
states that there is no effect:
8a. simple b.
Alternative c. Null d. Composite
Null
A bimodal shape
has the _________ peaks,
9a. Five b. Three
c. Four d. Two
Two
Measures of
Central tendency are mean,_____ and mode.
10a. variance b.
data c. number d. Median
Median
_____________
divides a dataset into four equal parts.
11a. Quartile b.
Standard deviation c. Mean d. Median
Quartile
If there are
small discrepancies between the fo and fe values then we
12a. neither
accept, nor reject H0 b. conclude and reject H0 c. conclude not good fit in the
data and the hypothesis. d. fail to reject H0
fail to
reject H0H_0H0
All data points
falling along a straight line is called:
13a. Scatter
diagram b. Linear relationship c. Residual d. Non-linear relationship
Linear
relationship
For Q1 = 20 and
Q3 = 70, Quartile deviation = _____ 1
50 b. 25 c. 70 d.
20
25
Which one of the
following measurement scale is used for the date where chi square statistic is
used? 15
interval b.
decimal c. ratio d. nominal
nominal
If the values of
two variables move in the same direction
The correlation
is said to be negative b. The correlation is said to be non-linear c. The
correlation is said to be linear d. The correlation is said to be positive
The
correlation is said to be positive
As compared to
normal distribution, The t-distribution is,
Flatter b. More
peaked c. Symmetric d. Negatively skewed
Flatter
In simple random
sampling each member of the population has ________ chance of occurrence.
None of these b.
Equal c. Different d. Unequal
Equal
Review of
performance appraisal, labour turnover rates, planning of incentives, and
training programs are relevant to which of the following?
. Law b.
Management c. Statistics d. Sociology
Therefore, the correct to your is:
Management
If one-way ANOVA
provides a statistically significant result, then _______________ hypothesis is
accepted.
. Directional b.
Non-directional c. Alternate d. Null
Alternate
Histograms are
used for the data that is,
. At any level of
the measurement b. At least ordinal level of measurement c. At most ordinal
level of measurement d. None of these
At least
ordinal level of measurement
A uniform
distribution often means that the number of classes is too,
. Small b. Same
c. Large d. Different
Large
Which is
continuous variable from the following?
. Students’ study
time at home b. Subject of Interest among students c. Number of students in a
class d. Name of Colours
Students’
study time at home
For a data, Lower
value of quartile deviation means
lower mean b.
higher mean c. lower dispersion d. higher dispersion
lower
dispersion
Probability sampling and random sampling are:
Different b.
Opposite c. None of these d. Same
Same
In a study,
subjects are randomly assigned to one of three groups: control, experimental
A, or
experimental B. After treatment, the mean scores for the three groups are
compared. The appropriate statistical test for comparing these means is: 26a.
the correlation coefficient b. the analysis of variance c. chi square d. the t-test
Therefore,
the correct to your is:
the
analysis of variance
_________of a
dataset is the middle value when the dataset is arranged in ascending or
descending order.
27a. Variance b.
Mean c. Standard deviation d. Median
Median
Range is
difference between …… and…… observations in a set of data.
a. Q1 – Q3 b.
Mean – median c. Central – extreme d. Largest – smallest
Largest
– smallest
For a set of
data, if inter quartile range is 30, then quartile deviation is _____
0 b. 60 c. 15 d.
30
15
The first hand
and unorganized form of data is called
Primary data b.
Secondary data c. Tertiary data d. Raw data
Raw
data
In simple linear regression, the numbers of
unknown constants are: 2 a. Four b. Two c. One d. Three
Two
Which Measure of dispersion considers only
extreme values? 3 a. standard deviation. b. quartile deviation c. range. d.
mean deviation.
The correct is:
Range
For a set of data, if inter quartile range is
30, then quartile deviation is _____ a. 30 b. 60 c. 0 d. 15
The correct is:
15
The process of drawing a sample from a
population is known as _________. 6 a. Census b. Sampling c. None of these d.
Sample survey
Sampling
Which of the following statements is true
about the Type-II error?
a. Type two error means to reject an incorrect
hypothesis b. Type two error means to reject a correct hypothesis c. Type two
error means to accept a correct hypothesis d. Type two error means to accept an
incorrect
Type
two error means to accept an incorrect hypothesis
As variability due to chance decreases, the
value of F will
a. stay the same b. increase c. decrease d.
can’t tell from the given information
increase
The error deviations within the SSE statistic
measure distances:
a. between groups b. within groups c. between
each value and the grand mean d. both A. and B.
within
groups
A random distribution often means there are,
a. No classes b. Too many classes c. No Value
d. No data
The correct is:
No
classes
Which of the following is not a form of
non-random sampling?
a. Systematic sampling b. Purposive sampling
c. Quota sampling d. Snowball sampling
Systematic
sampling
If the true means of the k populations are
equal, then MSTR/MSE should be: a. close to 0.00 b. close to -1.00 c. close to
1.00 d. more than 1.00
close to 1.00
When two dice are rolled the Sum of dots can
be:
a. Both A and B b. A discrete variable c. A
continuous variable d. Neither A nor B
A discrete variable
Which of the followings similar to the bar
chart,
a. Pictogram b. Histogram c. Historigram d.
Pie chart
Pictogram
Data collected by NADRA to issue computerized
identity cards is ………….
a. Secondary data b. Primary data c.
Qualitative data d. Organized data
Primary data
____ hypothesis states that there is no
effect:
a. Alternative b. Composite c. simple d. Null
Null
The correct is:
Linear regression analysis
When the inferential statistics deals with
more than two variables then it is called;
a. Bivariate analysis b. None of these c. Mono
variate analysis d. Multi variate analysis
Multivariate analysis
Interval Scale
To make the chi-square approximation valid,
there is requirement of sufficient a. Sample b. Literature c. Data d. Population
Sample
For chi-square test of independence, sample
should be selected using
a. stratified random sampling b. systematic sampling
c. simple random sampling d. non- random sampling method
Simple random sampling
For the given numbers “ 5,7, 10, ,9,4” ,
Coefficient of Range is ____
a. 0.43 b. 10 c. 6 d. 2.33
0.43
_________ divides a dataset into four equal parts.
a. Quartile b. Standard deviation c. Mean d.
Median
Quartile
What is the standard deviation for the given
data: 5,5,5,5
a. 10 b. 20 c. 0 d. 5
0
___________ is calculated by taking into
account each and every value in a dataset.
a. Mean b. Range c. Median d. Mode
Mean
Median is the appropriate measure of central
tendency for __________ level of dataset with an asymmetric distribution.
a. Categorical b. Ratio c. Nominal d. Ordinal
The correct is:
Ordinal
A hypothesis under test is.
a. Simple hypothesis b. Composite hypothesis
c. Null hypothesis d. Alternative hypothesis
The correct is:
Null hypothesis
A sample free from bias is ________________:
a. Unbiased b. Error-free c. None of these d.
Biased
Unbiased
Pictogram is also known as,
Picto
Which of the following is common to be used
for relationship of categorical variables?
Chi-square test of independence
