This Paper has 42 answerable questions with 0 answered.
| Roll No……………… | |
| Time allowed : 3 hours | Maximum marks : 100 |
| Total number of questions : 8 | Total number of printed pages : 2 |
PART —A
(Answer Question No.1 which is compulsory and any two of the rest from this part.)
|
| Marks |
| 1. | (a) | Briefly discuss the following statements in the context of information systems: | 2each | |
| | | (i) | The systems approach is a variant of scientific method. | | (0) |
| | | (ii) | In the present time, information is an important resource. | | (0) |
| | | (iii) | Computer based financial information system supports finance managers in taking timely decisions. | | (0) |
| | | (iv) | Security of computer hardware is an important issue of system implementation. | | (0) |
| | | (v) | Data base management systems are replacing old file management systems. | | (0) |
| | (b) | Solve the following: | 5each | |
| | | (i) | Subtract 150 from 350 using 2's complement method. | | (0) |
| | | (ii) | Calculate the binary sum of 175 and 125. | | (0) |
| | | (iii) | Find decimal equivalent of (300)8 | | (0) |
| | | (iv) | Find hexadecimal equivalent of (49482)10 | | (0) |
| | | (v) | Represent decimal number 4724.56 in floating point expression and mention mantissa and exponent components of this representation. | | (0) |
| 2. | Write notes on any three of the following: | 5each | |
| | (i) | Accounting information system | | (0) |
| | (ii) | Online and real time processing | | (0) |
| | (iii) | Software trends | | (0) |
| | (iv) | Advantages of data base systems | | (0) |
| | (v) | JAVA. | | (0) |
| 3. | (a) | What is 'system'? How does 'systems approach' help in business? Substantiate your answer by giving some examples of a system. | 5each | (0) |
| | (b) | “Random access method is superior to sequential access method in data base management system (DBMS).” Do you agree? Why? | 5each | (0) |
| | (c) | How does 'programming with modelling language/special purpose language' differ from the 'programming with general purpose language? | 5each | (0) |
| 4. | (a) | Explain the following in one or two line(s): | 1each | |
| | | (i) | Sub–system | | (0) |
| | | (ii) | Optical disk | | (0) |
| | | (iii) | RAM | | (0) |
| | | (iv) | Joy stick | | (0) |
| | | (v) | Multi–programming | | (0) |
| | | (vi) | Key attributes | | (0) |
| | | (vii) | Data dictionary | | (0) |
| | | (viii) | Index files | | (0) |
| | | (ix) | HTML | | (0) |
| | (b) | Distinguish between the following: | 3each | |
| | | (i) | 'Serial ports' and 'parallel ports', | | (0) |
| | | (ii) | ‘C’ and 'C++'. | | (0) |
PART —B
(Answer Question No.5 which is compulsory
and any two of the rest from this part.)
|
| 5. | (a) | Write short notes on the following: | 3each | |
| | | (i) | Nature of quantitative techniques. | | (0) |
| | | (ii) | Advantage of linear programming | | (0) |
| | | (iii) | Types of index number | | (0) |
| | | (iv) | Significance of time series analysis. | | (0) |
| | (b) | In a moderately symmetrical distribution— | 2each | |
| | | (i) | the arithmetic mean and mode are 20 and 18 respectively. Find the median. | | (0) |
| | | (ii) | the mode and median are 22 and 21.4 respectively. Find the arithmetic mean. | | (0) |
| | (c) | The average rainfall for a week excluding Sunday was 10 cms. Due to heavy rainfall on Sunday, the average rainfall for the week rose to 15 cms. How much rainfall was there on Sunday ? | 4 | (0) |
| 6. | (a) | Calculate the 4–yearly moving average of the given data: | Year | Index No. | Year | Index No. | 1
2
3
4
5
6
7 | 52.7
79.4
76.3
66.0
68.6
93.8
104.7 | 8
9
10
11
12
13 | 87.2
79.3
103.6
97.3
92.4
100.7 |
| If x is A.M of the observations x1, x2,......,xn then show that | n
Σ
i = 1 | |
| 8 | (0) |
| | (b) | Distinguish between 'primary data' and 'secondary data'. Discuss various methods of collecting primary data. | 7 | (0) |
| 7. | (a) | For a group of 30 male workers, the mean and standard deviation of weekly overtime work (number of hours) are 10 and 4 respectively. For another group of 20 female workers, the mean and standard deviation of weekly overtime work are 5 and 3 hours respectively. You are required to— | (i) | calculate the mean and standard deviation for the two groups taken together. |
| (ii) | explain whether the overtime work is more variable for the male group than for female group. |
| 6+3 | (0) |
| | (b) | A limited company wants to pay bonus to the-members of the staff. The bonus is paid as under: Monthly Salary
(Rs.) | Bonus
(Rs.) | 200 – 240
240 – 280
280 – 320
320 – 360
360 – 400
400 – 440
440 & above | 50
60
70
80
90
100
110 |
Actual salaries of members of staff are given as under: 430
330
290 | 390
350
250 | 370
355
220 | 395
330
325 | 425
245
260 | 375
300
300 | 500
330
370 | 390
315 | 375
310 |
What is total bonus paid ? What is the average bonus paid per member of the staff? | 6 | (0) |
| 8. | (a) | Following table gives two variables. The first variable is the number of hours of reading done by 8 students per week for preparation of a professional examination. The second variable is the marks obtained in the examination: No. of Hours (X)
Marks Obtained (Y) | 50
80 | 16
35 | 36
57 | 46
76 | 30
60 | 40
66 | 20
40 | 26
50 |
Calculate Karl Pearson's co–efficient of correlation. | 9 | (0) |
| | (b) | "In the modern age of information technology, statistics can be applied to many areas." Write a note on important areas where statistics can be applied. | 6 | (0) |
