Classical

June 2015 - Paper 3

16:  

All the properties of order, interval and zero origin are simultaneously possessed by :

A.

Nominal Data

B.

Interval Data

C.

Ratio Data

D.

Ordinal Data

 
 

Option: C

Explanation :


17:  

Under which of the following situations, chi - square test is applicable ?

(a) testing homogenity

(b) testing goodness of fit

(c) testing equality of two sample means

(d) testing equality of two sample proportions

(e) testing independence of attributes

Codes :

A.

Only (a), (b) and (c)

B.

Only (a), (b) and (e)

C.

Only (c), (d) and (e)

D.

Only (a), (c) and (e)

 
 

Option: B

Explanation :


18:  

Which one of the following is not the correct statement regarding sampling distribution of mean ?

A.

Sampling distribution of mean is normally distributed for large sized samples.

B.

Sampling distribution of mean is normally distributed for small sized samples drawn from not normally distributed population.

C.

't' distribution is not normally distributed.

D.

Mean of the sampling distribution of mean is equal to the parametric value of mean.

 
 

Option: B

Explanation :


19:  

Consider the following statements and identify the wrong statements :

Statement – I

:

Accepting null hypothesis, when it is false, is called a level of significance.

Statement – II   

:

1 — α is called power of a test.

Statement – III  

:

Critical value of Z - static for two - tailed test at 5% level of significance is 1.96

Codes :

 

A.

Statements I, II and III

B.

Statements I and III

C.

Statements II and III

D.

Statements I and II

 
 

Option: D

Explanation :


20:  

The process of thoroughly checking the collected data to ensure optimal quality level is referred to as :

A.

Validation

B.

Editing

C.

Classification

D.

Entry

 
 

Option: A

Explanation :




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