Quiz__Lab_6
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University of British Columbia *
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Course
300
Subject
Industrial Engineering
Date
Jan 9, 2024
Type
Pages
5
Uploaded by CaptainFogOpossum40
6/4/2021
Quiz: Lab 6
https://canvas.ubc.ca/courses/72446/quizzes/338141/take
1/5
Lab 6
Started: Jun 3 at 10pm
Quiz Instructions
1 pts
Question 1
Upload
Please upload your script for Lab 6. Please include a comment at the top of the file
with your name.
A random selection of scripts will be graded by your TA. They will download the file
and copy it into the ABDLabs folder on their computer. They will then select all and
press Run. Your script should run without errors and produce the answers you
entered for the rest of the questions on Canvas this week.
Choose a File
1 pts
Question 2
Question 1a
What is the 95% confidence interval for the estimated proportion of equipment
disruption for old data?
Please report your answer to three decimal points
(e.g.,
150.432, 0.310)
Lower limit of 95% CI 0.005
Upper limit of 95% CI 0.026
1 pts
Question 3
6/4/2021
Quiz: Lab 6
https://canvas.ubc.ca/courses/72446/quizzes/338141/take
2/5
Question 1b
What is the 95% confidence interval for the estimated proportion of equipment
disruption for newer data
? Please report your answer to three decimal points
(e.g., 150.432, 0.310)
Lower limit of 95% CI 0.00
Upper limit of 95% CI 0.015
1 pts
Question 4
0.014
Question 2b
Provide the p-value of the chi-square test. Please report your answer to three
decimal points
(e.g., 150.432, 0.310)
1 pts
Question 5
The birth months (by three month interval) of soccer players competing in the
Under-20’s World Tournament are recorded in the data file
“soccer_birth_quarter.csv” (from Barnsley et al. 1992). Plot these data. Do you see
a pattern? Describe what you see
Yes, there is a pa ern- The highest frequency birth quarter is the Aug-Oct quarter. This is interesঞng because the players born in this most 'populous' quarter would be the oldest in their soccer cohort. Edit
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6/4/2021
Quiz: Lab 6
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34 words
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0 pts
Question 6
79
Question 4a
Calculate a table of the observed frequencies of heart attacks per week. How
many weeks had a single heart attack per week?
0 pts
Question 7
37.286
Question 4b
What is the mean number of heart attacks per week? Please report your answer to
three decimal points
(e.g., 150.432, 0.310)
0 pts
Question 8
Question 4c
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6/4/2021
Quiz: Lab 6
https://canvas.ubc.ca/courses/72446/quizzes/338141/take
4/5
0
What is the probability of 0 heart attacks in a week assuming Poisson
distribution? Please report your answer to three decimal points
(e.g., 150.432,
0.310)
0 pts
Question 9
5.799
Question 4f
Calculate the chi-squared for this hypothesis test, using chisq.test()$statistic
.
What is the X-squared value? Please report your answer to three decimal points
(e.g., 150.432, 0.310)
0 pts
Question 10
6
Question 4g
How many degrees of freedom should this chi-squared goodness of fit test have?
0 pts
Question 11
0.446
Question 4h
Calculate the P
-value for this test, using pchisq()
. What is the p-value? Please
report your answer to three decimal points
(e.g., 150.432, 0.310)
6/4/2021
Quiz: Lab 6
https://canvas.ubc.ca/courses/72446/quizzes/338141/take
5/5
Not saved
0 pts
Question 12
Question 4i
Summarize the results of this test. Does the frequency distribution of out-of-
hospital cardiac events follow a Poisson distribution?
Yes, It follows a Poisson distr
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