Business Statistics

A. Accounting system

B. Data analysis system

C. Status inquiry system

D. Information analysis system

A. System interventions

B. Validation

C. User interface

D. Human factors

A. Z-test

B. t-test

C. Chi-square test

D. F-test

A. $$\frac{{\sum dxdy}}{N}$$

B. $$\frac{{\sum dxdy}}{{N{\sigma _x}{\sigma _y}}}$$

C. $$\frac{{\sum dx}}{{\sum dy}}N$$

D. $$\frac{{\sum dy}}{N}$$

A. The basic understanding of the processes is essential even though the technology is a significant factor in a good design of information systems

B. The business management process has changed from function management to process management

C. The development of modern information system is a complex process

D. All of the above

A. 0.0725

B. 0.0925

C. 0.085

D. 0.0625

A. The use of the information system is accomplished through a visual medium

B. The human beings are the drivers of the information system to meet their information needs

C. The information systems are designed for the users who are human beings

D. All of the above

A. $$\frac{1}{{36}}$$

B. $$\frac{1}{{39}}$$

C. $$\frac{1}{{37}}$$

D. $$\frac{1}{{41}}$$

A. Return on investment analysis

B. Break-even analysis model

C. Budgeting models

D. All of the above

A. F-test

B. Average test

C. Correlation test

D. Mean test