2. As an alternative to hand washing, some hospitals allow health workers to rub their hands with an alcohol-based antiseptic. The British Medical Journal (Aug 17, 2002) reported on a study to compate the effectiveness of washing the hands with soap and rubbing the hands with alcohol. One group of health care workers used hand rubbing, while a second group used hand washing to clean their hands. The bacterial count (number of colony-forming units) on the hand of each worker was recorded. The table gives descriptive statistics on bacteria counts for the two groups of health care workers. Hand rubbing ī = 35 Hand washing = 69 a) Compute the coefficient of variation for each hand-cleaning method. s = 59 s = 106 b) Compute a 75% Chebyshev interval around the mean for each hand-cleaning method. c) On the basis of your results in part b), make an inference about the effectiveness of the two hand-cleaning methods. EXPLAIN VERY WELL YOUR ANSWER.
2. As an alternative to hand washing, some hospitals allow health workers to rub their hands with an alcohol-based antiseptic. The British Medical Journal (Aug 17, 2002) reported on a study to compate the effectiveness of washing the hands with soap and rubbing the hands with alcohol. One group of health care workers used hand rubbing, while a second group used hand washing to clean their hands. The bacterial count (number of colony-forming units) on the hand of each worker was recorded. The table gives descriptive statistics on bacteria counts for the two groups of health care workers. Hand rubbing ī = 35 Hand washing = 69 a) Compute the coefficient of variation for each hand-cleaning method. s = 59 s = 106 b) Compute a 75% Chebyshev interval around the mean for each hand-cleaning method. c) On the basis of your results in part b), make an inference about the effectiveness of the two hand-cleaning methods. EXPLAIN VERY WELL YOUR ANSWER.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Not sure if I am doing this right. Second image is a screenshot of my excel page

Transcribed Image Text:2. As an alternative to hand washing, some hospitals allow health workers to rub their hands with an
alcohol-based antiseptic. The British Medical Journal (Aug 17, 2002) reported on a study to compate
the effectiveness of washing the hands with soap and rubbing the hands with alcohol. One group of
health care workers used hand rubbing, while a second group used hand washing to clean their hands.
The bacterial count (number of colony-forming units) on the hand of each worker was recorded. The
table gives descriptive statistics on bacteria counts for the two groups of health care workers.
Hand rubbing = 35
Hand washing a = 69
a) Compute the coefficient of variation for each hand-cleaning method.
s = 59
= 106
b) Compute a 75% Chebyshev interval around the mean for each hand-cleaning method.
c) On the basis of your results in part b), make an inference about the effectiveness of the two
hand-cleaning methods. EXPLAIN VERY WELL YOUR ANSWER.

Transcribed Image Text:Hand rubbing
X =
35 s =
59
Hand washing
X =
69 s =
106
CV:
168.5714 %
Hand rubbing
153.6232 %
Hand washing
C.I.
interval:
-83
153 Hand rubbing
-143
281 Hand washing
Expert Solution

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Given information:-
s | ||
Hand rubbing | 35 | 59 |
Hand washing | 69 | 106 |
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