Decision Science NMIMS Assignment June 2022

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Decision Science NMIMS Assignment June 2022

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Decision Science NMIMS Assignment Solution June 2022

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Description

NMIMS Global Access
School for Continuing Education (NGA-SCE)
Course: Decision Science
Internal Assignment Applicable for June 2022 Examination
Assignment Marks: 30
Instructions:
 All Questions carry equal marks.
 All Questions are compulsory
 All answers to be explained in not more than 1000 words for question 1 and 2 and for
question 3 in not more than 500 words for each subsection. Use relevant examples,
illustrations as far as possible.
 All answers to be written individually. Discussion and group work is not advisable.
 Students are free to refer to any books/reference material/website/internet for attempting
their assignments, but are not allowed to copy the matter as it is from the source of
reference.
 Students should write the assignment in their own words. Copying of assignments from
other students is not allowed.
 Students should follow the following parameter for answering the assignment questions.
1. Three airlines serve a Srinagar. Airline ‘Amira’ has 50% of all the scheduled flights,
airline ‘Biyas’ has 30%, and airline ‘chinar’ has the remaining 20%. Their on-time rates
are 80%, 65%, and 40%, respectively.
For Theoretical Answer
Assessment Parameter Weightage
Introduction 20%
Concepts and Application
related to the question
60%
Conclusion 20%
For Numerical Answer
Assessment Parameter Weightage
Understanding and usage
of the formula
20%
Procedure / Steps 60%
Correct Answer &
Interpretation
20%
Part 1) Draw the Probability tree diagram. (Note: You may use any software for this, like
MS paint, MS office, etc.)
Part 2) A plane has just left on time. What is the probability that it was airline ‘Amira’?
(10 Marks)
2. Rashmi Dhar, manufacturer, and seller of ‘Kashmiri- kahwa’ through E-commers
websites.
She wanted to know the effect of her spending in advertisement of ‘Kahwa’ on the sales,
along with the other factors; ‘number of sales representatives’, ‘customer-satisfaction
ratings’. For this research she has gathered the sales data in the following table, along
with other necessary information.
Part 1) Define dependent and independent variables
Part 2) Write regression model equation only.
Part 3) Run regression analysis in EXCEL (copy all those tables from EXCEL and paste
them in your document).
Part 4) Write the Interpretation of Regression statistics-table, ANOVA- table.
Write an interpretation (by referring P-value/ t-stat) on significant effect of independent
variables on sales.
Region/
Districts
Sales of
Kahwa (in
INR)
Spending in
advertise (in INR)
number of sales
representatives
(person)
customer-satisfaction
ratings (1=highly
dissatisfied to 5 =
highly satisfied
Kupwara 55328 5512 1 1
Badgam 56251 8337 1 1
Leh-ladakh 57126 8788 4 1
Kargil 58739 8828 5 1
Region/
Districts
Sales of
Kahwa (in
INR)
Spending in
advertise (in INR)
number of sales
representatives
(person)
customer-satisfaction
ratings (1=highly
dissatisfied to 5 =
highly satisfied
Punch 66984 9050 5 2
Rajouri 70676 10150 7 2
Kathua 73206 11236 8 2
Baramula 80571 12538 8 3
Bandipore 93168 13161 8 3
Srinagar 99432 13448 9 4
(10 Marks)
3.a. According to one survey in India, 75% of Instagram users love REELS. Suppose that 25
Instagram users (randomly selected) have been approached in the university located in vile
parle. They have been asked about their status of like/ dislike the Instagram- REELS.
a) What is the probability that Exactly 15 of them would agree with the claim (or said they
love Insta-REELS)?
b) What is the probability that Exactly 20 of them would agree with the claim (or said they
love Insta-REELS)?
(5 Marks)
3.b. ‘Bhartdarshan’ is an Internet-based travel agency wherein customers can see videos of the
cities they plan to visit. The number of hits daily is a normally distributed random variable
with a mean of 10,000 and a standard deviation of 2,400.
a. What is the probability of getting more than 12,000 hits?
b. What is the probability of getting fewer than 9,000 hits?
(5 Marks)
**********

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