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Quantitative Methods - I
Jun 2025 Examination
PLEASE NOTE: This assignment is application based, you
have to apply what you have learnt in this subject into real life scenario. You
will find most of the information through internet search and the remaining
from your common sense. None of the answers appear directly in the textbook
chapters but are based on the content in the chapter
Q1. From a large batch of
batteries, a sample of size 50 is drawn. The average lifespan of the batteries
is 1200 hours with a standard deviation of 200 hours.
1. Find the probability that the
mean lifespan of the sample is less than 1150 hours. (3 Marks)
2. Calculate the 95% confidence
interval for the sample mean lifespan. (4 Marks)
3. Discuss the effect of increasing
the sample size to 100 on the standard error and the probability calculation.
(3 Marks)
(10 Marks)
Q2A. A deck of cards contains 10
red and 6 black cards. If two cards are randomly drawn without replacement,
what is the probability that both cards drawn are black?
What is the probability that at
least one of the two cards drawn is red?
Total 5 Marks
Dear Students,
Get fully solved assignments by professionals providing since 2012 — trusted by
over 10,000+ students!
100% plagiarism-free or your money back!
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help.mbaassignments@gmail.com
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