Quiz__Lab_8
pdf
keyboard_arrow_up
School
University of British Columbia *
*We aren’t endorsed by this school
Course
300
Subject
Industrial Engineering
Date
Jan 9, 2024
Type
Pages
3
Uploaded by CaptainFogOpossum40
6/11/2021
Quiz: Lab 8
https://canvas.ubc.ca/courses/72446/quizzes/338128/take
1/3
Lab 8
Started: Jun 11 at 4:34pm
Quiz Instructions
1 pts
Question 1
Upload
Please upload your script for Lab 8.
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 3a
Use ggplot()
to plot the distribution of total length (this is the length of the bird from
beak to tail). Does the data look as though it comes from a distribution that is
approximately normal?
Yes, It does.
1 pts
Question 3
6/11/2021
Quiz: Lab 8
https://canvas.ubc.ca/courses/72446/quizzes/338128/take
2/3
The data fall along a straight line. Therefore total length variable fits a normal distribution
The data fall along a straight line. Therefore total length variable doesn't fit a normal
distribution
The data don't fall along a straight line. Therefore total length variable fits a normal distribution
The data don't fall along a straight line. Therefore total length variable doesn't fit a normal
distribution
Question 3b
Use qqnorm()
to plot a QQ plot for total length. Does the data fall approximately along
a straight line in the QQ plot? If so, what does this imply about the fit of these data to a
normal distribution?
3 pts
Question 4
Question 3c
Calculate the mean of total length and a 95% confidence interval for this mean. Please
report your answer to two decimal point (e.g., 150.43, 0.31)
Mean 159.54
Lower limit of 95% CI 158.94
Upper limit of 95% CI 160.15
1 pts
Question 5
Question 5
Does the transformation make the data more normal?
6/11/2021
Quiz: Lab 8
https://canvas.ubc.ca/courses/72446/quizzes/338128/take
3/3
Quiz saved at 5:27pm
Yes
Submit Quiz
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
- Access to all documents
- Unlimited textbook solutions
- 24/7 expert homework help