1. Here are the results of an analysis of WTI and UNL prices. Notice that WTI is in USD/bbl while UNL is in USD/gal. Your client wants to know the 99% USD/bbl of the difference in credibility intervals. Report the difference and the ratio of the two intervals. Explain to the client what the result means. Provide your answer directly below along with the reasons for the calculations you made. Be sure to show all of your work in your notebook. Take a photo of the page in the notebook and upload it below. Your answer variable mean WTI variable mean UNL min 49.44 min 2.29 25% 66.70 25% 2.76 50% 71.20 50% 2.88 75% 75.94 75% 2.99 max 99.13 max 3.59 IQR 9.23 IQR 0.23 0.25 fence 52.86 0.25 fence 2.41 0.75 fence 89.78 0.75 fence 3.34 mean 71.33 mean 2.88 sd 6.92 sd 0.17 mad 5.52 mad 0.14 skewness 0.06 skewness 0.04 kurtosis 2.97 kurtosis 3.00 count 10000 count 10000 credible credible 99% 99% interval interval 0.5% 54.09 0.5% 2.44 99.5% 89.45 99.5% 3.33

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Question
1. Here are the results of an analysis of WTI and UNL prices. Notice that
WTI is in USD/bbl while UNL is in USD/gal. Your client wants to know the
99% USD/bbl of the difference in credibility intervals. Report the
difference and the ratio of the two intervals. Explain to the client what
the result means. Provide your answer directly below along with the
reasons for the calculations you made. Be sure to show all of your work
in your notebook. Take a photo of the page in the notebook and upload
it below.
Your answer
variable
mean WTI
variable
mean UNL
min
49.44
min
2.29
25%
66.70
25%
2.76
50%
71.20
50%
2.88
75%
75.94
75%
2.99
max
99.13
max
3.59
IQR
9.23
IQR
0.23
0.25 fence
52.86
0.25 fence
2.41
0.75 fence
89.78
0.75 fence
3.34
mean
71.33
mean
2.88
sd
6.92
sd
0.17
mad
5.52
mad
0.14
skewness
0.06
skewness
0.04
kurtosis
2.97
kurtosis
3.00
count
10000
count
10000
credible
credible
99%
99%
interval
interval
0.5%
54.09
0.5%
2.44
99.5%
89.45
99.5%
3.33
Transcribed Image Text:1. Here are the results of an analysis of WTI and UNL prices. Notice that WTI is in USD/bbl while UNL is in USD/gal. Your client wants to know the 99% USD/bbl of the difference in credibility intervals. Report the difference and the ratio of the two intervals. Explain to the client what the result means. Provide your answer directly below along with the reasons for the calculations you made. Be sure to show all of your work in your notebook. Take a photo of the page in the notebook and upload it below. Your answer variable mean WTI variable mean UNL min 49.44 min 2.29 25% 66.70 25% 2.76 50% 71.20 50% 2.88 75% 75.94 75% 2.99 max 99.13 max 3.59 IQR 9.23 IQR 0.23 0.25 fence 52.86 0.25 fence 2.41 0.75 fence 89.78 0.75 fence 3.34 mean 71.33 mean 2.88 sd 6.92 sd 0.17 mad 5.52 mad 0.14 skewness 0.06 skewness 0.04 kurtosis 2.97 kurtosis 3.00 count 10000 count 10000 credible credible 99% 99% interval interval 0.5% 54.09 0.5% 2.44 99.5% 89.45 99.5% 3.33
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