oper stay

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Does the length of a surgery patient's stay in the hospital depend on the length of time the
operation took? The table below gives the operative time (in hours) and the length of the hospital
stay (in days) for 13 patients. (Comma separated lists of the data are also provided below the table
to ease in copying the data to R.)
Operative Time (In Hours) (x)
Length of Hospital Stay (In Days) (y)
2
8.
2.3
7
2.1
7
2.1
2.2
10
2.3
7
1.3
3
2.5
7
7
1.8
6.
2.2
6.
1
11
1.8
x: 2, 2.3, 2.1, 2.1, 2.2, 2.3, 1.3, 2.5, 2, 1.8, 2.2, 1, 1.8
y: 8, 7,7, 5, 10, 7, 3, 7, 7, 6, 6, 11,6
1. Find the best fit line for the data.
y =
+
2. Graph the scatter plot of the data together with the best fit line using R. (This portion of the
problem is not graded.)
3. If a patient's operation took 1 hour, how many days should we expect them to stay at the
hospital?
Transcribed Image Text:Does the length of a surgery patient's stay in the hospital depend on the length of time the operation took? The table below gives the operative time (in hours) and the length of the hospital stay (in days) for 13 patients. (Comma separated lists of the data are also provided below the table to ease in copying the data to R.) Operative Time (In Hours) (x) Length of Hospital Stay (In Days) (y) 2 8. 2.3 7 2.1 7 2.1 2.2 10 2.3 7 1.3 3 2.5 7 7 1.8 6. 2.2 6. 1 11 1.8 x: 2, 2.3, 2.1, 2.1, 2.2, 2.3, 1.3, 2.5, 2, 1.8, 2.2, 1, 1.8 y: 8, 7,7, 5, 10, 7, 3, 7, 7, 6, 6, 11,6 1. Find the best fit line for the data. y = + 2. Graph the scatter plot of the data together with the best fit line using R. (This portion of the problem is not graded.) 3. If a patient's operation took 1 hour, how many days should we expect them to stay at the hospital?
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