Classical

Statistics and methodology - Statistics and Methodology Questions Answer

86:  

If the population value follows normal distribution then to have 95% confidence interval for estimate we use

A.

Z = 1.645

B.

Z = 2.05

C.

Z = 1.96

D.

Z = 2.58

 
 

Option: C

Explanation :

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87:  

Business system consists

A.

Target fixing

B.

Markets

C.

Business forecasting for products

D.

All of the above

 
 

Option: D

Explanation :

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88:  

Probability theory does not include

A.

Bernoullie's process

B.

Conditional probability

C.

Correlation

D.

Mathematical expectation

 
 

Option: C

Explanation :

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89:  

Control methods are used to

A.

Determine sample size and reliability of results

B.

Determine cost and time involved

C.

Determine sample units to be studied and measurement

D.

Check accuracy, coverage, analysis and interpretation

 
 

Option: D

Explanation :

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90:  

Information is a product of

A.

Planning

B.

Communication

C.

Company

D.

Data processing

 
 

Option: D

Explanation :

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