Standard error of mean computed by
A. | Standard deviation of the sample/√Sample size |
B. | Sample/√(N - 1) |
C. | N/√(σ – 1) |
D. | (N – 1)/√N |
Option: A Explanation : |
___________ defines the limits above and below the size of the co-efficient determined within which there is an equal chance that co-efficient similarly calculated from other samples will fall
A. | Average error |
B. | Correlation error |
C. | Probable error |
D. | Standard error |
Option: C Explanation : |
It is often more important to find out what the relation actually is, in order to estimate or product one variable and the statistical technique appropriate to such a case is called
A. | Regression analysis |
B. | Average |
C. | Correlation analysis |
D. | Mean |
Option: A Explanation : |
Examples for existent and hypothetical populations are
A. | Number of leaves in three month old plants of same type and throwing a die infinite number of time to observe an even number |
B. | Number of leaves in three month old plants of same type and tossing a coin once |
C. | Throwing a die twice and tossing a coin thrice |
D. | Getting defectives in a days production and height of people |
Option: B Explanation : |
Which of the following statement is true?
A. | The management information system is product of a multi-disciplinary approach to the business management. |
B. | The management information system is a system which provides information support for decision making in the organisation. |
C. | The management information system 'helps in strategic planning, management, control, operational control and transaction processing. |
D. | All of the above. |
Option: D Explanation : |