Consider the following information.
Commodity
Price in 2015 (Rs.)
Price in 2016 (Rs.)
A
50
70
B
40
60
C
80
90
D
110
120
E
20
20
If we go on constructing an index number for the year 2016, taking year 2015 as base, what will be the value?
A. 102
B. 107
C. 110
D. 120
E. 125
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Questionnaire is a:
A. Research method
B. Measurement technique
C. Tool for data collection
D. Data analysis technique
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If a construction company claims that 40% of all residences being built are 2 bedroom homes, the null hypothesis is
A. H0 /P = 0.4
B. H0 = P = 0.6
C. H0 = P = 60%
D. None of these
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Monthly expenditure of five persons in rupees are 132, 140, 144, 136 and 138. What will be its arithmetic mean?
A. Rs. 138
B. Rs. 144
C. Rs. 690
D. Rs. 132
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Poisson distribution is applied for:
A. Continuous Random Variable
B. Discrete Random Variable
C. Irregular Random Variable
D. Uncertain Random Variable
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Which of the following should be taken as the main features of an ideal average?
1. Easy to Understand and Simple to Compute
2. Rigidly Defined
3. Based on the minimum number of items in the data
4. Not to be Unduly Affected by Extreme Items
5. Capable of Further Algebraic Treatment
6. Less Sampling Stability
A. 2, 4 and 5
B. 1, 3, 4 and 5
C. 1, 2, 4 and 5
D. 2, 3, 4 and 5
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γ 2 coefficientis equal to
A. β 1 − 3
B. β 2 − 6
C. β 2 − 3
D. None of these
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Which of the following statements is/are true about a population in statistics?
1. Population is the total number of items under observation.
2. Parameter is a characteristics of population.
3. Each unit in a population possess same characteristics.
A. Both 1 and 2
B. Both 2 and 3
C. Both 1 and 3
D. 1, 2 and 3
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What part of the standard deviation is the mean deviation?
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For a symmetrical distribution:
A. β1 > 0
B. β1 < 0
C. β1 = 0
D. β1 = 3
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The formula to find the mode with the help of median and arithmetic mean is
A. Z = 2 M − X
B. Z = 4 M − X
C. Z = M − 4 X
D. Z = 3 M − 2 X
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In the case of an algebraic model for a straight line, if a value for the x variable is specified, then:
A. the exact value of the response variable can be computed
B. the computed response to the independent value will always give a minimal residual
C. the computed value of y will always be the best estimate of the mean response
D. none of these alternatives is correct
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Which of the following are NOT the sources of secondary data?
1. Interview
2. Questionnaire
3. Observation
4. Unpublished thesis
5. Annual report
Choose the correct option from the following:
A. 1, 4 and 5
B. 2, 3 and 4
C. 3, 4 and 5
D. 1, 2 and 3
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Variance of random variable X of γ (gamma) distribution can be calculated as
A. var(x) = n - 2/μp3
B. var(x) = xn/μp2
C. var(x) = 2n/μp2
D. var(x) = n + 2/μp2
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Assertion (A) Parametric test are applied initially.
Reason (R) Non-parametric test are much less cumbersome to use and easy to compute.
A. Both (A) and (R) are correct
B. Both (A) and (R) are true, but (R) is the correct explanation of (A)
C. (A) is true, but (R) is false
D. (A) is false, but (R) is true
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What is the probability that sum of outcomes on pair of dice is equal to 8?
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Sampling error . . . . . . . . with increase in sampling size while non-sampling error . . . . . . . . with increase in sample size.
A. decrease, increase
B. increase, decrease
C. decrease, decrease
D. increase, increase
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Which of the following is used to compare two or more frequency distribution?
A. Frequency polygon
B. Histogram
C. Cumulative frequency curves (ogives)
D. None of the above
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The second and fourth moments about mean are 4 and 48 respectively, then the distribution is:
A. Leptokurtic
B. Platykurtic
C. Mesokurtic or normal
D. Positively skewed
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The circular test is satisfied when-
A. P12 × P21 × P32 = 1
B. P12 × P32 × P31 = 1
C. P12 × P23 × P31 = 1
D. P12 × P23 × P13 = 1
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