Friday, 5 January 2018

MBA103 - Statistics for Management

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DRIVE
FALL 2017
PROGRAM
MASTER OF BUSINESS ADMINISTRATION (MBA)
SEMESTER
I
SUBJECT CODE & NAME
MBA103 - Statistics for Management
CREDITS
2, 4 CREDITS
MARKS
30


Note: Answer all questions. Kindly note that answers for 10 marks questions should be approximately of 400 words. Each question is followed by evaluation scheme.

Assignment Set -1

Question 1 Write Short notes on following methods of classification in Statistical Survey
i. One Way Classification.
ii. Two Way Classification
iii. Manifold Classification.
A One Way Classification.
Two Way Classification
Manifold Classification.

Answer: a. One-way classification – Classification done according to a single attributes or variable is known as one way classification.

Figure below depicts the number of students who has secured more than 60% in various sub-modules of statistics. This can be classified using one-way classification method.


Question 3 In a beauty contest, the ranks provided by three different judges to 10 competitors are given in following table. Find out which pair of judges are more associated in term of same pattern for ranking
Competitors
A
B
C
D
E
F
G
H
I
J
Judge 1
3
4
6
7
9
8
2
10
1
5
Judge 2
4
5
6
8
7
10
1
9
2
3
Judge 3
5
7
9
8
10
6
3
4
1
2
A Calculation of Rank Correlation
Interpretation

Answer: With a view to find out the Rank Correlation between all the 3 judges we will have to find the correlation between the following:
(i)         1st and 2nd judge
(ii)        1st and 3rd Judge
(iii)       2nd and 3rd judge.

Assignment Set -2

Question 1 Write short notes on
a. Type I and Type II error
b. Level of Significance
c. Null Hypothesis
d. Two–tailed Tests and One–tailed Tests
e. Test Statistics
a. Type I and Type II error
b. Level of Significance
c. Null Hypothesis
d. Two–tailed Tests and One–tailed Tests
e. Test Statistics

Answer: Type I error: Rejecting a true null hypothesis. The probability of a type I error is indicated by alpha (α).

Type II error: Not rejecting a false null hypothesis. The probability of a type II error is indicated by beta (β).

Level of significance: The smallest probability at which the null hypothesis would be rejected (type I error). Usually, if the significance level


Question 2 Marks of 10 students out of 150 is given below
60, 110, 120, 135,110, 96, 145, 55, 95 & 125

What is the average marks of a class, Calculate by direct & shortcut methods?
A Calculation by Direct method
Calculation by Short cut method

Answer: Direct method





Question 3. Production for last 7 years of XYZ ltd is given in following table
Year                                                 2009     2010     2011     2012     2013     2014               2015
Production(in Tons)                      8            12          13          17          25          22               30
Based on above data forecast the production for year 2016 & 2017.
A Fitting of straight line
Production for year 2016
Production for year 2017

Answer:  The trend line can be fitted by using the method of least squares for the given data.        
                                 


Dear students get fully solved assignments
Send your semester & Specialization name to our mail id :
help.mbaassignments@gmail.com
or
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