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.Management Sciences
Category: Statistics Mcqs
If a & b are constants, then Var (a + bX) equal to_________________?
A. Var(bX) + a
B. b2 Var(X)
C. b Var(x)
D. None of these
The average monthly production of a factory for the first 8 months is 2,500 units, and for the next 4 months the production was 1,200 units. The average monthly production of the year will be_____________?
A. 2066.55 units
B. 5031.10 units
C. 4021.12 units
D. 3012.11 units
In descriptive statistics, we study:
A. The description of decision making process
B. The methods for organizing, displaying, and describing data
C. How to describe the probability distribution
D. None of the above
Quartile Coefficient of skewness lies between______________?
A. 0 and 1
B. -1 and +1
C. -1 and 0
D. None of these
The basic random numbers are ________________?
A. 0 and 1
B. 0,1,2,…………9
C. 1,2,3….10
D. None of these
Binomial word discovered at the end of ________________?
A. 14th century
B. 12th century
C. 10th century
D. 17th century
Let X1,X2,……,Xn be a random sample from a density,,,, f(x ι θ) where θ is a value of the random variable Θwith known density gΘ(θ) Then the estimator ∏(θ) with…/ respect to the prior gΘ(θ) is define as_________________E[∏(θ)ιX1,X2,…..,Xn] is called?
A. Posterior Bay’s estimator
B. Minimax estimator
C. Bay’s estimator
D. Sufficient estimator
Which of the following test use Rank Sums____________?
A. Kruskal-Wallis and Wilcoxon tests
B. Runs test
C. Chi-Square and sign test
D. F test
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