MB0040 assignment spring 2016

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ASSIGNMENT
DRIVE
PROGRAM
SEMESTER
SUBJECT CODE & NAME
BK ID
CREDIT & MARKS
SPRING 2016
MBA
I
MB 0040- Statistics for Management
B1731
4 CREDITS, 60 MARKS
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.
Q.No
1
Criteria
Marks
Total Marks
a. Descriptive Statistics
2
10
b.
Measurement Scales
2
c.
Editing of Data
2
Write Short notes on
a. Descriptive Statistics
b.
Measurement Scales
c.
Editing of Data
d. Frequency Distribution
e. bar diagram
A
2
d. Frequency Distribution
2
e. bar diagram
2
What do you mean by Probability?
Define following basic terminologies used in probability theory.
a. Experiment
b. Random experiment
c. Sample space
d. Equally likely events
e. Event
f.
Mutually exclusive events
g. Exhaustive set of events
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h. Independent events
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A
3
Definition of Probability
2
a. Experiment
1
b. Random experiment
1
c. Sample space
1
d. Equally likely events
1
e. Event
1
f.
1
Mutually exclusive events
g. Exhaustive set of events
1
h. Independent events
1
10
Define Probability Distributions. State the assumptions and usage of Binomial Distribution
and Normal Distribution.
A
4
A
Probability distribution
2
Assumption and usage of Binomial Distribution
4
Assumption and usage of Normal Distribution
4
10
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
5
a. Type I and Type II error
2
b. Level of Significance
2
c. Null Hypothesis
2
d. Two–tailed Tests and One–tailed Tests
2
e. Test Statistics
2
10
Explain the concept of Chi-Square. Following table depicts the production in three shifts and
the number of defective goods that turned out in three weeks in an organization. Test at 5%
level of significance whether weeks and shifts are independent.
SHIFT
WEEK 1
WEEK 2
WEEK 3
I
15
5
20
II
20
10
20
III
25
15
20
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A
6
Chi Square concept
2
Numerical Solution
8
10
Case Study –
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The following table give the weekly sales of black & colour cartridges by a computer
accessories store for the past 7 weeks.
Weekly Sales of Cartridges
Black Cartridges Colour Cartridges
Week
Sales
Week
Sales
1
60
1
67
2
50
2
57
3
70
3
47
4
60
4
50
5
50
5
60
6
55
6
70
7
45
7
60
Prepare a weekly forecast for the next 5 weeks for both types of cartridges. Justify the method
used.
A
Forecast for black cartridge and Forecast for white cartridge
5
Justify the methods used
5
10
*A-Answer
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
***********
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