(c) What is your best estimate of the percent change in urinary protein based on the data in the table? (Round your answer to two decimal places.) % (d) Provide a 95% CI (in percent) associated with your estimate in part (c). (Enter your answer using interval notation. Round your numerical values to two decimal places.)
(c) What is your best estimate of the percent change in urinary protein based on the data in the table? (Round your answer to two decimal places.) % (d) Provide a 95% CI (in percent) associated with your estimate in part (c). (Enter your answer using interval notation. Round your numerical values to two decimal places.)
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
Transcribed Image Text:Renal Disease
Suppose ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated
with captopril over an 8-week period. Urinary protein was measured before and after drug therapy, with
results listed in the table below in both the raw and In scale. (Let population 1 be the measurement after
treatment and population 2 be the measurement before treatment. Use after - before.)
Changes in urinary protein after treatment with captopril
Patient
1
2
3
4
5
6
7
8
9
10
Raw scale urinary protein
(g/24 hr)
Before
USE SALT
25.7
17.1
15.9
10.5
8.1
7.8
5.7
5.5
5.0
4.8
After
10.2
5.6
5.7
3.5
6.4
0.8
6.2
4.6
2.1
2.8
In scale urinary protein
(g/24 hr)
Before
3.2465
2.8391
2.7663
2.3514
2.0919
2.0541
1.7405
1.7047
1.6094
1.5686
After
2.3224
1.7228
1.7405
1.2528
1.8563
-0.2231
1.8245
1.5261
0.7419
1.0296
(a) What is the appropriate statistical procedure to test whether mean urinary protein has changed over
the 8-week period? (You may need to use the Distribution Calculators page in SALT to check
conditions.)
Transcribed Image Text:Pq 3 All answers are correct.
Please explain clearly how to solve (c) *
Find the test statistic. (Round your answer to two decimal places.)
and (d)k
Thanks !!
3.88
Use technology to find the p-value. (Round your answer to four decimal places.)
p-value = 0.0037
State your conclusion.
Reject Ho. There is insufficient evidence to conclude that there is a significant change in mean
In(urinary protein) over the 8-week period.
Fail to reject Ho. There is insufficient evidence to conclude that there is a significant change in
mean In(urinary protein) over the 8-week period.
%
O Fail to reject Ho. There is sufficient evidence to conclude that there is a significant change in
mean In(urinary protein) over the 8-week period.
Reject Ho. There is sufficient evidence to conclude that there is a significant change in mean
In(urinary protein) over the 8-week period.
Are there any advantages to using the raw or the In scale?
be
Since the difference scores appear to ---Select--- related to the initial urinary protein, the
---Selectcale
-scale is preferable here.
(c) What is your best estimate of the percent change in urinary protein based on the data in the table?
(Round your answer to two decimal places.)
%
(d) Provide a 95% CI (in percent) associated with your estimate in part (c). (Enter your answer using
interval notation. Round your numerical values to two decimal places.)
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