PLAN Step: What specific statistical operations does this problem call for and why? The goal is to determine whether or not there is an association (relationship) between the type of complication and the type of surgery. Calculate the mean and standard deviation for each variable. Compare the conditional distributions using a segmented bar graph or a mosaic plot. Construct side-by-side histograms or side-by-side boxplots for the three treatments grouped by the type of complication. Calculate the conditional distributions of the type of complication for each of the three treatments.
PLAN Step: What specific statistical operations does this problem call for and why? The goal is to determine whether or not there is an association (relationship) between the type of complication and the type of surgery. Calculate the mean and standard deviation for each variable. Compare the conditional distributions using a segmented bar graph or a mosaic plot. Construct side-by-side histograms or side-by-side boxplots for the three treatments grouped by the type of complication. Calculate the conditional distributions of the type of complication for each of the three treatments.
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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Transcribed Image Text:Bariatric surgery, or weight-loss surgery, includes a variety of procedures performed on people who are obese. Weight loss is
achieved by reducing the size of the stomach with an implanted medical device (gastric banding), by removing a portion of
the stomach (sleeve gastrectomy), or by resecting and rerouting the small intestines to a small stomach pouch (gastric bypass
surgery). Because there can be complications using any of these methods, the National Institutes of Health recommend
bariatric surgery only for obese people with a body mass index (BMI) of at least 40 and for people with a BMI of 35 and
serious coexisting medical conditions such as diabetes. Serious complications include potentially life-threatening.
permanently disabling, and fatal outcomes.
Observe the two-way table for data collected in Michigan over several years, giving counts of non-life-threatening
complications, serious complications, and no complications for these three types of surgeries.
What do the data say about differences in complications for the three types of surgeries?
Type of Complication
Gastric banding
Sleeve gastrectomy
Gastric bypass
Non-Life-Threatening
81
31
606
Serious None Total
46
19
325
5253
804
5380
854
81107 9041
Click to download the data in your preferred format.
CSV Excel JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI Crunchlt!
Transcribed Image Text:Bariatric surgery, or weight-loss surgery, includes a variety of procedures performed on people who are obese. Weight loss is
achieved by reducing the size of the stomach with an implanted medical device (gastric banding), by removing a portion of
the stomach (sleeve gastrectomy), or by resecting and rerouting the small intestines to a small stomach pouch (gastric bypass
surgery). Because there can be complications using any of these methods, the National Institutes of Health recommend
bariatric surgery only for obese people with a body mass index (BMI) of at least 40 and for people with a BMI of 35 and
serious coexisting medical conditions such as diabetes. Serious complications include potentially life-threatening.
permanently disabling, and fatal outcomes.
Observe the two-way table for data collected in Michigan over several years, giving counts of non-life-threatening
complications, serious complications, and no complications for these three types of surgeries.
What do the data say about differences in complications for the three types of surgeries?
Type of Complication
Gastric banding
Sleeve gastrectomy
Gastric bypass
Non-Life-Threatening
81
31
606
Serious None Total
46
19
325
5253
804
5380
854
81107 9041
Click to download the data in your preferred format.
CSV Excel JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI Crunchlt!
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