MBA SEMESTER 1 MB0040 – STATISTICS FOR MANAGEMENT- 4 Credits (Book ID: B1129) Assignment Set- 1 (60 Marks) Note: Each question carries 10 Marks. Answer all the questions

1. (a) ‘Statistics is the backbone of decision-making’. Comment. [ 5 marks] (b) Give plural meaning of the word Statistics? [ 5 marks]

2. a. In a bivariate data on ‘x’ and ‘y’, variance of ‘x’ = 49, variance of ‘y’ = 9 and covariance (x,y) = -17.5. Find coefficient of correlation between ‘x’ and ‘y’. [ 5 marks] b. Enumerate the factors which should be kept in mind for proper planning. [ 5 marks] 3. The percentage sugar content of Tobacco in two samples was represented in table 11.11. Test whether their population variances are same. [ 10 marks] Table 1. Percentage sugar content of Tobacco in two samples Sample A Sample B 2.4 2.7 2.7 3.0 2.6 2.1 2.8 3.1 2.5 2.2 3.6

4. a. Explain the characteristics of business forecasting. [ 5 marks] b. Differentiate between prediction, projection and forecasting. [ 5 marks] 5. What are the components of time series? Bring out the significance of moving average in analysing a time series and point out its limitations. [ 10 marks] 6. List down various measures of central tendency and explain the difference between them? [ 5 marks] b. What is a confidence interval, and why it is useful? What is a confidence level? [ 5 marks]

Fall 2011- August drive

MBA SEMESTER 1 MB0040 – STATISTICS FOR MANAGEMENT- 4 Credits (Book ID: B1129) Assignment Set- 2 (60 Marks) Note: Each question carries 10 Marks. Answer all the questions 1. (a) What are the characteristics of a good measure of central tendency? [ 5 marks] (b) What are the uses of averages? [ 5 marks] 2. Calculate the 3 yearly and 5 yearly averages of the data in table below. [ 10 marks] Table 1: Production data from 1988 to 1997 Year 1988 198 199 199 1992 1993 1994 1995 1996 199 9 0 1 7 18 16 22 19 24 20 28 22 30

...MBA SEMESTER 1
MB0040 – STATISTICS FOR MANAGEMENT
Assignment
Roll No.
1- Statistical survey is a scientific process of collection and analysis of numerical data used to collect information about units.
Questionnair and schedule are both methods of collecting data in statistical survey. At questionnair the questions is sent by mail to respondents to fill it and send it back. At schedule the questions is filled by the enumerator....

...successful that after World War II many companies used similar techniques in
managerial decision making and planning.
The decision making task of modern management is more demanding and more important
than ever. Many organisations employ operations research or management science personnel or
consultants to apply the principles of scientiﬁc management to problems and decision making.
In this module we focus on a number of useful models and...

...Business Administration- MBA Semester 1
MB0040 - Statistics for Management
Q1. A Explain the characteristics of statistics?
B. What are the components of statistics? Give a brief description of each of its component’s?
Answer: (A) Some of its important characteristics are given below:
* Statistics are aggregates of facts.
* Statistics are numerically expressed.
*...

...1 Statistics plays a vital role in almost every facet of human life. Describe the functions of Statistics.Explain the applications of statistics.
Meaning of statistics
Functions of statistics
Applications of statistics.
Ans:Statistics plays an important role in almost every facet of human life. In business context, managers are required to justify decisions on the basis of data. They need statistical models to support...

...SUMMER-2015
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Master of Business Administration- MBA Semester 1
MB0040–Statistics for Management-4 Credits
(Book ID: B1731)
Assignment (60 Marks)
Note: Answer all questions (with 300 to 400 words each) must be written within 6-8 pages. Each Question carries 10 marks 6 X 10=60
Q1. Distinguish between Classification and Tabulation. Explain...

...deals with numbers. Qualitative data describes properties or characteristics that are used to identify things. Quantitative data describes data in terms of quantity using the numerical figure accompanied by measurement unit. Statistics deals only with quantitative data.
Statistics deals with numerical data, which can be expressed in terms of quantitative measurements. So, the qualitative phenomenon like beauty, intelligence cannot be expressed numerically and...

...distribution function for 100 normal random numbers. The K-S test is based on the maximum distance between these two curves.
Characteristics and Limitations of the K-S TestAn attractive feature of this test is that the distribution of the K-S test statistic itself does not depend on the underlying cumulative distribution function being tested. Another advantage is that it is an exact test (the chi-square goodness-of-fit test depends on an adequate sample size for the...

...Normal(88.532,5.07943)
Normal(97.1033,5.04488)
Normal(107.15,5.15367)
Summary Statistics
Mean
88.532
Std Dev
5.0794269
Std Err Mean
0.2271589
Upper 95% Mean
88.978306
Lower 95% Mean
88.085694
N
500
Sum
44266
Summary Statistics
Mean
97.103333
Std Dev
5.0448811
Std Err Mean
0.2912663
Upper 95% Mean
97.676525
Lower 95% Mean
96.530142
N
300
Sum
29131
Summary Statistics
Mean...

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