×
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 3cre
Get Full Access to Elementary Statistics - 12 Edition - Chapter 11.3 - Problem 3cre

×

# ICU Patients Listed below are the ages of randomly

ISBN: 9780321836960 18

## Solution for problem 3CRE Chapter 11.3

Elementary Statistics | 12th Edition

• Textbook Solutions
• 2901 Step-by-step solutions solved by professors and subject experts
• Get 24/7 help from StudySoup virtual teaching assistants

Elementary Statistics | 12th Edition

4 5 1 357 Reviews
17
2
Problem 3CRE

ICU Patients? Listed below are the ages of randomly selected patients in intensive care units (based on data from “A Multifaceted Intervention for Quality Improvement in a Network of Intensive Care Units,” by Scales et al., ?Journal of the American Medical Association,? Vol. 305, No. 4). Find the mean, median, and standard deviation. Based on the results, is an age of 16 years ?unusual?? Why or why not?

Step-by-Step Solution:
Step 1 of 3

Solution 3CRE Step1: From the above given problem we have ICU Patients Listed below are the ages of randomly selected patients in intensive care units 38,64,35,67,42,29,68,62,74,58. Step2: Our aim is to find mean, median and standard deviation Based on the results,we need to check is an age of 16 years u nusual Why or why not Step: 1).Mean: mean is the average of all numbers or It is the average of sum of all values divided by number of values. Mean can be calculated by using the formula x i=1i X = N 38+64+35+6+42+29+68+62+74+58 = 10 = 53.7 Therefore, the mean value is X = 53.7 2).median: Median is middle value in data set,The median of the data is found by arranging the data in ascending order first. 29,35,38,42,58,62,64,67,68,74 Now the median is given by Median = n+1, if data set is even 2 n Median = 2, if data set is odd Therefore, median = 10+1 112 = 2 = 5.5 5.5th item is the median value what we have arranged in ascending order i.e, Hence we will take mean of 5th and 6th item which is 58 and 62 respectively. So the median will be 60 years. 3).standard deviation: 10 2 (i x) It is square root of variance and it is given by S = i =10 = 16.09 Therefore standard deviation is S = 16.09 years An age of 16 years is unusual because it is away from standard deviation as well as it will alter the mean value significantly.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The full step-by-step solution to problem: 3CRE from chapter: 11.3 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. Since the solution to 3CRE from 11.3 chapter was answered, more than 323 students have viewed the full step-by-step answer. The answer to “ICU Patients? Listed below are the ages of randomly selected patients in intensive care units (based on data from “A Multifaceted Intervention for Quality Improvement in a Network of Intensive Care Units,” by Scales et al., ?Journal of the American Medical Association,? Vol. 305, No. 4). Find the mean, median, and standard deviation. Based on the results, is an age of 16 years ?unusual?? Why or why not?” is broken down into a number of easy to follow steps, and 68 words. This full solution covers the following key subjects: based, Units, patients, intensive, care. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. Elementary Statistics was written by and is associated to the ISBN: 9780321836960.

#### Related chapters

Unlock Textbook Solution