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Statistics Ics Part 2 Online Test MCQs With Answers
Question # 1
Choose an answer
biased
unbiased
positively biased
none of these
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Question # 2
The shape of the chi-square distribution depends upon_________.
Choose an answer
Parameters
Number of cells
Degrees of freedom
Standard deviation
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Question # 3
The estimates of the parameters=α and=β are
Choose an answer
μ and=σ2
a and b
μ andπ
χ2 and Z
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Question # 4
ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2
Choose an answer
maximum
constant
minimum
variable
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Question # 5
The standard error of the estimate increased by decreasing
Choose an answer
population
sample size
errors
precision
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Question # 6
The straight line is fitted to a time series when the movements in the time series are
Choose an answer
linear
quadratic
cubic
constant
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Question # 7
Small sample has less than
Choose an answer
50 values
45 values
30 values
35 values
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Question # 8
The critical region of=χ2distribution is
Choose an answer
χ2 <χ2v; 1-α
χ2 <χ2v;1-α
χ2 <χ2 v;1-α/2
χ2 <χ2v;1-α/2
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Question # 9
If Ho: μ <μoand H1:μ <μoand level of significance is=α then Ho will be rejected if
Choose an answer
Z < Z=α
Z < Z=α/2
Z < Z 1-α
Z < Z1-α/2
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Question # 10
For a least squares linear trend ŷ = a + bx, the Σ(y-ŷ)
2
= 0 when
Choose an answer
all the y-values lie on the line
all the y-values are positive
all the y-+values lie above the line
none of these
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Question # 11
___________ is a set of electronic instructions:
Choose an answer
Hardware
Software
Hard disk
Compact disk
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Question # 12
P(μ-2σ < X=< μ + 2σ)=
Choose an answer
0.6827
0.9545
0.9973
0.9827
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Question # 13
In N is the size of population and N is the size of sample then possible samples that can be drawn with replacement are.
Choose an answer
N/n
N
n
Nen
None of these
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Question # 14
The most common type of computer memory is called:
Choose an answer
ALU
ENIAC
RAM
ROM
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Question # 15
The _______ regression line always passes through (X̅, y̅).
Choose an answer
Opposite
Estimated
Estimates
Random
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Question # 16
An automobile is driven on the average on more than 1600 kilometers per year, the null hypothesis is
Choose an answer
H
o
: μ = 16000 kilometers
H
o
: μ ≤ 16000 kilometers
H
o
: μ < 16000 kilometers
H
o
: μ > 16000 kilometers
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Question # 17
1 MB equals _________byes
Choose an answer
1,094,265
1,904,265
1,904,265
1,048.576
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Question # 18
The moment Coefficient of kurtosis is
Choose an answer
β
1
β
2
Zero
m
2
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