Two types of batteries are tested for their length of life and the following data are obtained:
| No of samples | Mean life (hrs) | Sample variance | |
| Pype A | 9 | 600 | 121 |
| Type B | 8 | 640 | 144 |
Is there a significant difference in the two means? (t for 15 df at 5% level= 2.131)
See Answer →Suppose that a day’s production schedule calls for 9000 items. Three machines A, B and C each with a daily production capacity of 4000 have the probability that an item is defective on them as 1, 2 and 4 percent respectively. On a given day 4000 items were produced on A, 4000 on B and 1000 on C. One item is selected at random and found defective. What is the probability that it was produced on either A or B?
See Answer →Calculate Spearman’s coefficient of ranks correlation from the following data:
| x | 53 | 98 | 95 | 81 | 75 | 61 | 59 | 55 |
| y | 47 | 25 | 32 | 37 | 30 | 40 | 39 | 45 |
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Comment on the statement “Statistics is the science and art of handling aggregate of facts – observing, enumerating, recording, classifying and other wise systematically treating them.
See Answer →In the context of a data warehouse:
(a) What is a concept hierarchy?
(b) What do you mean by factual information?
(c) What is a snowflake schema?
See Answer →In which phase of system life cycle the following are performed? Defining the problem, identifying its causes, specifying the solution, and identifying the information requirements.
See Answer →Computers are often referred to as ‘number crunchers’. Evaluate the statement in the context of financial planning.
See Answer →What are various ways of assessing the value of information? Explain each method briefly?
See Answer →Explain the difference between commercial software, shareware, open source software, freeware and public domain software.
See Answer →a) Explain the importance of branding in marketing of goods and services. Select a suitable brand name and discuss the branding decisions that you would consider in the following situations. (a) a premium soap for men (b) gearless motorcycle for women from a leading manufacturer.
b) As a Manager, you have been assigned the task of sales forecasting for the following periods.
(a) Short term for – 6 months
(b) Midterm for – 2 years
(c) Long term for – 4-5 years
How would you go about in undertaking the said task for a small passenger car. Discuss the determinants, approaches and evaluation criteria that you wish to consider. Justify.
See Answer →a) Explain and discuss the concept of a segment in marketing. Take a hypothetical example of your choice and explain the bases for segmentation and the decision to select its segment.
(b) Who is a consumer? Why knowledge of consumer behavior is important for marketers in the design and development of firms offering? Illustrate.
See Answer →a) Distinguish between products and services with suitable illustrations. Discuss the concept of service and the reasons for growth of the sector in the last five years (collect data from published and internet sources). b) What is the concept of product life cycle (PLC)? Discuss the various stages of PLC in the following situations.
(i) any SUV model of your choice
(ii) electric bike
See Answer →a) Explain the term marketing with suitable examples. Discuss the elements of marketing mix and their role in strategy development. b) With the help of secondary data sources (published or internet) try and collect relevant and recent material in the last five years with regard to infrastructure sector which indicates the type of marketing effort is being made to develop and promote infrastructure sector.
See Answer →Discuss the powers and functions of National Commission for the Protection of Child Rights (NCPCR)
See Answer →Write a note on Buddhism and Human Rights
See Answer →Evaluate the role played by non-governmental organisations in the field of Human Rights.
See Answer →Critically analyse the challenges faced by the contemporary human rights movement.
See Answer →Describe the machinery provided in the Consumer Protection Act, (1986) for the redressal of complaints of consumers.
See Answer →Describe the duties of the Protection Officer under the Protection of Women from Domestic Violence Act (2005).
See Answer →Discuss the guidelines that need to be followed in case of arrest of Female.
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