Answered: I am struggling to calculate the…

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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I am struggling to calculate the percentage using the standard normal curve and whilst applying z scores to it. This is the method that I have been taught but I do not understand it best. Please help me with this method if possible.

Mode = 8 and 11
Median = 11
Mean= 11.6
Range =14
Variance = 17.84
Standard deviation = 4.22

Using the standard normal curve, and the data obtained from the histogram (Listed above), please help me answer the following questions:

Is a patient that stayed X = 10 days considered as being an extreme or typical length of stay? (show all your data analysis and justify your response in one sentence)
What percentage of the patients stayed longer than this? What percentage of the patients stayed less than this? Please show me how to calculate this properly.

b. Is a patient that stayed X = 17 days considered as being an extreme or typical length of stay? (Justify your response in one sentence) What percentage of the patients stayed longer than this? What percentage of the patients stayed less than this?

Length of stay in the Hospital
6
5
4
3
1
6 7 8 9
10
11
12
13
14
15
16
17
18
19 20
Length of stay (Days)
Frequency
2.

Definition Definition Middle value of a data set. The median divides a data set into two halves, and it also called the 50th percentile. The median is much less affected by outliers and skewed data than the mean. If the number of elements in a dataset is odd, then the middlemost element of the data arranged in ascending or descending order is the median. If the number of elements in the dataset is even, the average of the two central elements of the arranged data is the median of the set. For example, if a dataset has five items—12, 13, 21, 27, 31—the median is the third item in ascending order, or 21. If a dataset has six items—12, 13, 21, 27, 31, 33—the median is the average of the third (21) and fourth (27) items. It is calculated as follows: (21 + 27) / 2 = 24.

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