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Course: Master of Business Administration
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Q&A of MS-95 Solved Assignment 2023 - Research Methodology for Management Decisions
Q. Discuss the various experimental designs as powerful tools to study the cause-and-effect relationships among variables in research.
Answer......
Q. A parliamentary study on the issue of self-rule for the District of Chandigarh involved surveying 2,000 people from the city's population regarding their opinions on several issues related to self-rule. Chandigarh is a city in which many neighbourhoods are poor, and many neighbourhoods are rich, with very few neighbourhoods falling between the extremes. The researchers who were administering the survey had reasons to believe that the opinions expressed on the various questions would be highly dependent on income. Which method was more appropriate, stratified sampling or cluster sampling? Explain briefly.
Answer......
Q. Three samples of five, four and five moor car tyres are drawn respectively from three brands, A, B and C, manufactured by three machines. The lifetime of these tyres (in '000 miles) is given below. Test whether the average lifetime of the three brands of tyres is equal or not.
A B C
45 41 44
42 40 42
43 42 38
44 43 43
42 ... 39
Answer......
Q. Describe the major events of your college life to a group of your friends. You make a 3 minutes presentation and ask for their reactions to the presentations and their suggestions for improvement on the focus of the presentation theme. List out the suggestions they make to you.
Answer......
Q. You may go through various issues of any management journal(s). You may likely come across a regression model for estimating, sales, advertisement expenditure, price or any other variable. Discuss how the model may be used for the following:
a. Explanation purposes.
b. Prediction of the future value of the dependent variable.
c. Helping the decision maker decides what to do to achieve a given object
Answer......
Product Details: Mba MS-95 Solved Assignment 2023
Course: IGNOU MBA (Master of Business Administration)
Session: Jan - June 2023 July - Dec
Subject: Research Methodology for Management Decisions
Ignou Mba MS-95 Assignments - Old Sample Answers
Q. What is a Regression Analysis?
Answer. Time series analysis is the term used to describe a set of statistical tools that are useful for identifying patterns of demand that repeat periodically - in other words, patterns that are driven by time. The other most widely used tool for demand forecasting is regression analysis. This statistical tool is useful when the analyst has reason to believe that some measurable factor other than time is affecting demand. Regression analysis begins with the identification of two categories of variables: dependent variables and independent variables.......
Regression models are built using a data set of historical values. They are used to evaluate the relationship between independent and dependent variables in an existing data set and produce a mathematical framework that can be extrapolated to values of the independent variables not present in the data set.........
A diverse range of regression models exists, and the appropriate model to employ for a given task depends on the nature of the dependent variable being predicted. In some cases, an explicit value must be predicted-say, the total amount of revenue a new user will spend over the user's lifetime..............
In other cases, the value predicted by the regression model is not numeric but categorical; following from the example above, if, instead of the total revenue a new user will spend over the users lifetime, a model was constructed to predict whether or not the user would ever contribute revenue, the model would be predicting for a categorical (in this case, binary) variable: revenue or no revenue.............
Imagine you are a consultant working in a purchasing department whose input into business decision making process is welcomed within the firm. The Purchasing Manager believes that by working more closely with suppliers, subsequent delivery performance will improve. His idea of working more closely means visiting suppliers on a regular basis to discuss business issues.........
