Classical

Business Statistics and Data Processing - Business Statistics Multiple Choice Questions

26:  
The regression analysis for studying only two variable at a time is called
A.

Simple Regression

B.

Multiple Regression

C.

Zero Regression

D.

None of these

 
 

Option: A

Explanation :


27:  
Which of the following can be used to determine correlation?
A.

Simple graphical method

B.

Karl Pearson's coefficient

C.

Least square method

D.

All of the above

 
 

Option: D

Explanation :


28:  
When a production is heterogeneous, it is divided into groups, so that there is homogeneity within the group and heterogeneity between the groups and some items are selected at random from each group. It is a case of
A.

Cluster Random Sampling

B.

Systematic Random Sampling

C.

Quota Sampling

D.

Stratified Random Sampling

 
 

Option: D

Explanation :


29:  

F= S12/S22   is a 

A.

t -test

B.

F -test

C.

z- test

D.

mean test

 
 

Option: B

Explanation :


30:  
Sampling distribution of mean is very close to the standard normal distribution when
A.

Population is normally distributed

B.
Population is not normally distributed but sample size is large
C.

Both (A) and (B)

D.

Neither (A) nor (B)

 
 

Option: C

Explanation :




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