In conditional probability it is
A. Possible to incorporate latest information
B. Possible to incorporate the cost aspects
C. To find probability of getting a sample value given population value
D. To find population value, given sample value
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Conditions for negative exponential distribution considering mean (μ) is that
A. μ must be smaller than 2
B. μ must be greater than zero
C. μ must be greater than one
D. μ must be less than zero
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A researcher wants to test the significance of the differences of the average performance of more than two sample groups drawn from a normally distributed population, which one of the following hypothesis testing tests is appropriate?
A. Chi-square test
B. F-test
C. Z-test
D. t-test
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If μ is equal to 8 then the standard deviation of exponential probability distribution is
A. 0.325
B. 0.125
C. 0.425
D. 0.225
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Statement I A sampling distribution of mean, prepared on the basis of small sized samples from a population which is not normally distributed, is not normally distributed.
Statement II To test the significance of the difference between means of two small sized samples when the parameter values of the standard deviations are given, Z-test can be applied.
A. Both statements are correct
B. Both statements are incorrect
C. Statement I is correct, while Statement II is incorrect
D. Statement I is incorrect, while Statement II is correct
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Cumulative probability function is
A. P F ( x )
B. F ( x ) P − 1
C. F ( x ) = P ( x ⩾ x )
D. F ( x ) = P ( x ⩽ 1 = q )
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TQM of information systems consists
A. User friendly operations
B. An ease of maintenance
C. A precise and an accurate information
D. All of the above
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Dispersions are not calculated on
A. mean
B. mode
C. geometric mean
D. median
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What is the probability of the happening of an event?
A. m + n m
B. 100 n ( m − c )
C. m + n n
D. q − 1 n
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Which of the following is the application of χ 2 -test?
A. Test of freedom
B. Test concerning the variance of a normal distribution
C. Test of goodness of fit
D. All of the above
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Probable error is
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Questioning, experimentation and . . . . . . . . are the examples of primary method.
A. observation
B. multiplication
C. web surfing
D. weighting
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Standard error (proportion or difference) may be
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Match the following.
List-I (Symbols)
List-II (Applications)
a. r
1. Economic order processing
b. X
2. Mode
c. σ
3. Mean
d. Z
4. Deviation
5. Correlation
A. a-5, b-3, c-4, d-2
B. a-1, b-2, c-3, d-4
C. a-4, b-3, c-2, d-1
D. a-5, b-2, c-4, d-3
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In F-test, S1 2 and S2 2 are defined as
A. S 1 2 = n 1 − 1 ∑ ( X 1 − X 1 ) 2 , S 2 2 = n 1 − 1 ∑ ( X 2 − X 1 ) 2
B. S 1 2 = n 1 − 1 ∑ ( X 1 − X 1 ) 2 , S 2 2 = n 1 − 1 ( X 2 − X 2 ) 2
C. S 1 2 = n 1 − 1 ∑ ( X 1 − X 1 ) 2 , S 2 2 = n 2 − 1 ∑ ( X 2 − X 2 ) 2
D. None of the above
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Given
The above diagram represents a . . . . . . . . problem.
A. average mean
B. binomial distribution
C. median
D. regression analysis
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Which one of the following is restricted non-probability based sampling method?
A. Stratified sampling
B. Quota sampling
C. Cluster sampling
D. Systematic sampling
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Given, ∑ dx dy = 2350, ∑ d2 x = 8250, ∑ d2 y = 724, then r will be
A. 0.76
B. 0.36
C. 0.96
D. -0.96
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Which of the following point is/are correct about MIS?
A. Provide that information which supportsin achieving the MIS goals and objectives
B. Budgeted profits of various products
C. Transaction processing and data processing
D. All of the above
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Two regression lines closer to each other show
A. lower degree of correlation
B. higher degree of correlation
C. no correlation
D. All of the above
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