Classical

Business Statistics and Data Processing - Business Statistics Objective Type Questions

21:  
If the sample size increases the sampling error
A.

Decreases

B.

Increases

C.

Remains constant

D.

None of the above

 
 

Option: A

Explanation :


22:  
F-Test is used to test the significance of the difference between / among
A.

Two sample mean

B.

More than two sample mean

C.

Variable of two sample

D.

Both (B) and (C)

 
 

Option: D

Explanation :


23:  
Which formula may be used for standard error.
A.

S.E.= (Hr^2)/√N

B.

S.E.= (1- r^2)/ N

C.

S.E.= (1- r^2)/√N

D.

S.E.= (1- r^2)/√(N+1)

 
 

Option: C

Explanation :


24:  
Which of the following is the tool of measure of the variation of the items
A.

Mode

B.

Mean

C.

Hypothesis

D.

Dispersion

 
 

Option: D

Explanation :


25:  

 β-error in hypothesis testing refers to

A.

Type-I error

B.

Type-II error

C.

Both Type-I and II errors

D.

None of the above

 
 

Option: B

Explanation :




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