statistics MCQs – Page 16

Practise multiple-choice questions from statistics for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

301. Link relative = ________________?
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A. Pn/Po x100

B. None of these

C. Pn/Po x10

D. Pn/pn-1 x100
302. The non parametric equivalent of an unpaired samples t-test____________?
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A. Sign test

B. Kruskal Wallis Test

C. Mann-Whitney U test

D. Wilcoxon signed rank test

303. for two estimators T1=t1(X1,X2,.Xn) and T1=t1(X1,X2,.Xn) then estimators t1 is defined to be Rt1(?)?Rt2(?) for all ? in ? ?
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A. Admissible estimator

B. Consistent estimator

C. Sufficient estimator

D. Minimax estimator

304. Type II error is committed when the null hypothesis is _________________?
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A. Accepted when it is true

B. Rejected when it is false

C. Rejected when it is true

D. Accepted when it is false
305. Mean deviation =______ S.D?
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A. 3-Feb

B. 6-May

C. 5-Jun

D. 4/5
306. In Chain base method, the base period is ________________?
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A. Fixed

B. Change

C. None of these

D. Constant

307. The second moment about mean is _____?
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A. Variance

B. Mean

C. Mode

D. S.D.
308. The ________ in the distribution around which the observation to lie?
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A. Central value

B. Manner

C. Mean

D. Dispersion

309. In a binomial distribution, n = 10 p= 3/5, its mean is:_________________?
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A. None of these

B. 5-Feb

C. 6

D. 1

310. The mean deviation of the values, 18, 12, 15, is_______________?
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A. 2

B. 3

C. 6

D. Zero

311. For a binomial distribution with n = 15 as p changes from. 50 toward. 05 the distribution will__________?
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A. All of the above.

B. Become more negatively skewed

C. Become symmetrical

D. Become more positively skewed
312. Mean is relatively ____ measure?
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A. Group

B. manipulation

C. Stable

D. Change

313. Binomial distribution is used when n is ____________________?
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A. Small

B. Normal

C. Large

D. Zero

314. The variance of 4,4,4,4,4,4 is _______________?
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A. (4)2

B. 4

C. None of these

D. 8

315. Consumer price Index Number also called _________ is designed to measure changes?
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A. Cost Living Index number

B. Whole Sale Index number

C. Consumer Index Number

D. weighted Index Number

316. An Index number of an average quality of wheat in Lahore__________ Index?
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A. value Index Number

B. Quantity Index Number

C. Weighted Index Number

D. Volume Index Number

317. Herbicide A has been used for years in order to kill a particular type of weed. An experiment is to be conducted in order to see whether a new herbicide, Herbicide B, is more effective than Herbicide A. Herbicide A will continue to be used unless there is sufficient evidence that Herbicide B is more effective. The alternative hypothesis in this problem is_____________?
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A. Herbicide A is more effective than Herbicide B

B. Herbicide A is not more effective than Herbicide B

C. Herbicide B is more effective than Herbicide A

D. Herbicide B is not more effective than Herbicide A
318. What is the variance of binomial distribution __________________?
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A. np/q

B. nq/p

C. np (1 p)

D. n p

319. Binomial distribution is symmetrical when:_________________?
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A. np > npq

B. p > q

C. p > q

D. p = q
320. In symmetrical distribution, the co-efficient of skewness is equal to ______________?
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A. None of these

B. 1

C. -1

D. 0