Classical

Statistics and methodology - Statistics and Methodology Multiple Choice Questions

11:  

Average sales of Bata Shoe Co's multiple shops are Rs. 12,500 per month with a standard deviation of Rs. 4050. Find out what proportion of all shops sold between Rs. 12,500 and Rs. 16,550?

A.

Rs. 12,500 and Rs. 16,550

B.

Rs. 12,000 and Rs. 16,000

C.

Rs. 13,000 and Rs. 16,000

D.

Rs. 12,000 and Rs. 13,900

 
 

Option: A

Explanation :

(x - μ)/σ = (16550 - 12500)/4050 = 1.00

By referring to the table we find the area covered

by the normal curve = 0.34134

or,      0.34134 x 100 = 34.134%

Hence shop sold between 12500 and 16550.

Hence the answer is (a).


12:  

Situations in which ϰ2-test is not applicable is

A.

to test the discrepancies between observed and expected frequencies.

B.

to test the goodness of fit.

C.

in case of large sample, where sample size is greater than 30.

D.

to determine association between two or more attributes.

 
 

Option: C

Explanation :


13:  

The advantages of sampling is

A.

Extensive study

B.

Intensive study

C.

Information in brief

D.

Non-destructive nature of certain tests.

 
 

Option: B

Explanation :


14:  

SSAD stands for

A.

Structured System Analysis and Design

B.

Structured System Analysis and Document

C.

Structured Social Analysis and Document

D.

Social System Analysis and Design

 
 

Option: A

Explanation :


15:  

The _________ of r(correlation) is an amount which if added to and subtracted from the average correlation co-efficient produces amounts within which the chances are even that a co-efficient of correlation from a series error selected at random will fall

A.

Sample error

B.

Probable error

C.

Average error

D.

Standard error

 
 

Option: B

Explanation :




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