Classical

Business Statistics and Data Processing - Business Statistics Questions

26:  
Assertion (A). Standard and error of the mean is the standard deviation of the sampling distribution of mean.
Reason (R). Simple random sampling is non-profitable sampling method.
A.

Both (A) and (R) are true.

B.

Both (A) and (R) is false.

C.

(A) is true and (R) is false.

D.

(A) is false and (R) is true.

 
 

Option: C

Explanation :

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27:  

A good hypothesis should be

A.
formulated in such a way that it can be tested by the data
B.
precise, specific and consistent with most known facts
C.
of limited scope and should not have global Significance
D.

all of these

 
 

Option: D

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28:  
Given the following tests:
(i) x2-test (ii) t-test
(iii) f-test (iv) z test
The concept of degree of freedom is associated with
A.

(i) and (ii)

B.

(ii) and (iii)

C.

(iii) and (iv)

D.

(ii), (iii), and (iv)

 
 

Option: D

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29:  

Hypothesis cannot be stated in

A.

declarative terms

B.

null and question form terms

C.

general terms

D.

directional terms

 
 

Option: C

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30:  

Data integrity refers to the

A.

simplicity of data

B.

privacy of data

C.

validity of data

D.

Security of data

 
 

Option: C

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