Page:6

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'STATISTICAL ASSISTANT GR II -ECONOMICS AND STATISTICS' And exam conducted in the year 2015. And Question paper code was '005/2015/OL'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 6 out of 8

Home Page http://192.168.1.6/psc/modules/marklist/answer_sheet/pr.

20.5

Correct Answer:- Option-C

(Question6 3-1FZ is a standard normal variate, the proportion of items lying between 7=-0.5 and z=-3.0 is

۸7

B:-0.1915

D:-0.3098

Correct Answer:- Option-C

(Question64:Factorization theorem for sufficiency is known as

‘AvRao-Blackwell theorem

Cramer-Rao theorem

C:Chapman-Robins theorem

D:-Fisher-Neyman theorem

Correct Answer:- Option-D

Question6 5:If the expected value of an estimator is not equal to its parametric function r() , itis said to be a

Avunbiased estimator

Be-biased estimator

Ceconsistent estimator

Ds-none of the above.

Correct Answer:- Option-B

Question66An estimator 7; of @ is said to be more efficient than any other estimator 7” _n) of # if and only if

കാ ஐ)

പ

ന്നി

ل وما

ಸಾರ್ಸ್

D:-All the above

Correct Answer:- Option-D

டத

Le

the sample variance, then s? is an unbiased estimate of

is the population variance and s°

Correct Answer:- Option-D

Question68="The sample median is estimate for the mean of normal population.

‘Avunbiased,

B:-consistent

Ceunbiased and consistent

Ds-none of the above.

Correct Answer:- Option-C

Question69-If a sufficient estimator exists it is a function of the estimator.

‘Armoment estimator

‘minimum chisquare estimator

C+maximum likelihood estimator

D:-none of the above

Correct Answer:- Option-C

Question70:The credit of inventing the method of moments for estimating the parameter goes to

AGR. A. Fisher

B:J. Neyman

D:-Karl Pearson

Correct Answer:- Option-D

Question? 1-Cramer-Rao inequality with regard to the variance of an estimator provides

A-upper bound on the variance

Jower bound on the variance

Crasymptotic variance of an estimator

D:-none of the above

Correct Answer:- Option-B

Question72:If Xj, 2¥ . »isayrantiom sample from a population N(0,o?

the sufficient statistic for 2” is

D:-none of the above

Correct Answer:- Option-B

Question73:Estimate and Estimator are

‘Avsynonyms

B-related to population

D:-none of the above

Correct Answer:- Option-C

Question74The idea of testing of hypothesis was first set forth by

ಟಟ

J.Neyman

CrE.L.Lehman

84

Correct Answer:- Option -B

‘Question75:A wrong decision about Mp leads to

Avone kind of error

B:-two kinds of errors

Crthree kinds of errors

D:-four kinds of errors

Correct Answer:- Option-B

Question76=In terms of type II error م and @ , the true parameter, the function 1-40) is called

6 of 8 05/25/2015 03:06 PM

Similar Question Papers