Human skin loses water through evaporation, and, in general, damaged skin loses water at a faster rate than undamaged skin. In a study in which the outer layer of skin on a small section of the forearm was partially removed, water loss (in /gm2 per hour) was measured both before and after skin removal. The results for ten individuals were as follows: Subject Before After 1 18 20 2 12 28 3 15 18 4 18 26 5 18 23 6 13 23 7 12 19 8 17 21 9 16 23 10 14 27 Send data to Excel Part: 0 / 2 0 of 2 Parts Complete Part 1 of 2 (a)Construct a 95% confidence interval for the mean increase in water loss. Let d represent the water loss after skin removal minus the water loss before skin removal (in /gm2 per hour
Human skin loses water through evaporation, and, in general, damaged skin loses water at a faster rate than undamaged skin. In a study in which the outer layer of skin on a small section of the forearm was partially removed, water loss (in /gm2 per hour) was measured both before and after skin removal. The results for ten individuals were as follows: Subject Before After 1 18 20 2 12 28 3 15 18 4 18 26 5 18 23 6 13 23 7 12 19 8 17 21 9 16 23 10 14 27 Send data to Excel Part: 0 / 2 0 of 2 Parts Complete Part 1 of 2 (a)Construct a 95% confidence interval for the mean increase in water loss. Let d represent the water loss after skin removal minus the water loss before skin removal (in /gm2 per hour
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 22EQ
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Question
Water loss: Human skin loses water through evaporation, and, in general, damaged skin loses water at a faster rate than undamaged skin. In a study in which the outer layer of skin on a small section of the forearm was partially removed, water loss (in
/gm2
per hour) was measured both before and after skin removal. The results for ten individuals were as follows:
| Subject | Before | After |
|---|---|---|
|
1
|
18
|
20
|
|
2
|
12
|
28
|
|
3
|
15
|
18
|
|
4
|
18
|
26
|
|
5
|
18
|
23
|
|
6
|
13
|
23
|
|
7
|
12
|
19
|
|
8
|
17
|
21
|
|
9
|
16
|
23
|
|
10
|
14
|
27
|
Send data to Excel
Part: 0 / 2
0 of 2 Parts Complete
Part 1 of 2
(a)Construct a
confidence interval for the mean increase in water loss. Let
represent the water loss after skin removal minus the water loss before skin removal (in
per hour). Use the TI-84 Plus calculator and round the answers to one decimal place.
95%
d
/gm2
|
A
95%
<<μd
|
|
|
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