ou and your team have built a chess computer. Tlo investigate how well it performs, ou organise a tournament with 100 randomly selected grandmasters (a title given to xpert chess players by the world chess organization FIDE), where your computer will lay each of the grandmasters once, and it is recorded whether the game is a win for the omputer, a win for the grandmaster, or a draw. For each win against a grandmaster, he computer scores 1 point, and for each draw the computer scores half a point. At the nd of the tournament, the chess computer has scored 60 points.
ou and your team have built a chess computer. Tlo investigate how well it performs, ou organise a tournament with 100 randomly selected grandmasters (a title given to xpert chess players by the world chess organization FIDE), where your computer will lay each of the grandmasters once, and it is recorded whether the game is a win for the omputer, a win for the grandmaster, or a draw. For each win against a grandmaster, he computer scores 1 point, and for each draw the computer scores half a point. At the nd of the tournament, the chess computer has scored 60 points.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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Please answer the second part (iv) (v) (vi) (vii)
![You and your team have built a chess computer. To investigate how well it performs,
you organise a tournament with 100 randomly selected grandmasters (a title given to
expert chess players by the world chess organization FIDE), where your computer will
play each of the grandmasters once, and it is recorded whether the game is a win for the
computer, a win for the grandmaster, or a draw. For each win against a grandmaster,
the computer scores 1 point, and for each draw the computer scores half a point. At the
end of the tournament, the chess computer has scored 60 points.
i) Identify the population, sample and sample size.
ii) Identify a reasonable parameter and parameter space.
iii) Using the results of the tournament, give an estimate of the parameter. Explain
whether this is an unbiased estimate.
Subsequently, you and your team go away to improve the chess computer. After a
while, you organise another tournament, where the computer will again play 100
randomly selected grandmasters. Two members of your team make claims about the
new version of the computer. Alice claims that the new version will perform better
against grandmasters than the previous version. Bob claims that the new version will
score an average of at least 0.7 points in games against a grandmaster.
iv) Give the null and alternative hypotheses for both Alice and Bob's claims.
v) Using the concept of the critical value, explain how Alice's claim can be tested.
vi) Using the concept of the p-value, explain how Bob's claim can be tested.
Based on the results of the second tournament, you decide there is sufficient evidence
for both Alice and Bob's claims to be accepted. However, you later discover that both
your tournaments occurred at the same time as the Candidates Tournament (one of
the most important chess tournaments), and so, each time, your random selection of
grandmasters excluded the best 10%.
vii) With reference to Type I and/or Type II errors, explain how this discovery might
change your attitude to each of Alice and Bob's claims.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6ab89ad2-328d-4004-b31e-cca641a10119%2Ffafb969a-5bb8-4c4e-89a0-7b962729250d%2F6v7lufd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:You and your team have built a chess computer. To investigate how well it performs,
you organise a tournament with 100 randomly selected grandmasters (a title given to
expert chess players by the world chess organization FIDE), where your computer will
play each of the grandmasters once, and it is recorded whether the game is a win for the
computer, a win for the grandmaster, or a draw. For each win against a grandmaster,
the computer scores 1 point, and for each draw the computer scores half a point. At the
end of the tournament, the chess computer has scored 60 points.
i) Identify the population, sample and sample size.
ii) Identify a reasonable parameter and parameter space.
iii) Using the results of the tournament, give an estimate of the parameter. Explain
whether this is an unbiased estimate.
Subsequently, you and your team go away to improve the chess computer. After a
while, you organise another tournament, where the computer will again play 100
randomly selected grandmasters. Two members of your team make claims about the
new version of the computer. Alice claims that the new version will perform better
against grandmasters than the previous version. Bob claims that the new version will
score an average of at least 0.7 points in games against a grandmaster.
iv) Give the null and alternative hypotheses for both Alice and Bob's claims.
v) Using the concept of the critical value, explain how Alice's claim can be tested.
vi) Using the concept of the p-value, explain how Bob's claim can be tested.
Based on the results of the second tournament, you decide there is sufficient evidence
for both Alice and Bob's claims to be accepted. However, you later discover that both
your tournaments occurred at the same time as the Candidates Tournament (one of
the most important chess tournaments), and so, each time, your random selection of
grandmasters excluded the best 10%.
vii) With reference to Type I and/or Type II errors, explain how this discovery might
change your attitude to each of Alice and Bob's claims.
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