Pharmacology Suppose we want to estimate the concentration (ug/mL) of a specific dose of ampicillin in the urine after various pe- riods of time. We recruit 25 volunteers who have received ampicillin and find they have a mean concentration of 7.0 ug/mL with a standard deviation of 2.0 ug/mL. Assume the underlying population distribution of concentrations is normally distributed. *6.30 Find a 95% Cl for the population mean concentration. *6.31 Find a 99% CI for the population variance of the concentrations. bn 8.8 *6.32 How large a sample would be needed to ensure that the length of the Cl in Problem 6.30 is 0.5 ug/mL assuming the sample standard deviation remains at 2.0 μg/mL?
Pharmacology Suppose we want to estimate the concentration (ug/mL) of a specific dose of ampicillin in the urine after various pe- riods of time. We recruit 25 volunteers who have received ampicillin and find they have a mean concentration of 7.0 ug/mL with a standard deviation of 2.0 ug/mL. Assume the underlying population distribution of concentrations is normally distributed. *6.30 Find a 95% Cl for the population mean concentration. *6.31 Find a 99% CI for the population variance of the concentrations. bn 8.8 *6.32 How large a sample would be needed to ensure that the length of the Cl in Problem 6.30 is 0.5 ug/mL assuming the sample standard deviation remains at 2.0 μg/mL?
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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Solve the problems using R
Transcribed Image Text:25.4
siological parameters in patients with end-stage renal disease
with
he
BP
0.97
4.43
1.68
36.50
ng
IS
d
25.1
Baseline (n=102)
Mean
sd
0.22
0.64
0.47
16.08
18-month follow-up (n =69)
Rimm
19.2
Mean
1.00
4.49
1.57
23.27
sd
0.19
0.71
0.40
13.79
be
Pharmacology
Suppose we want to estimate the concentration (ug/mL)
of a specific dose of ampicillin in the urine after various pe-
riods of time. We recruit 25 volunteers who have received
ampicillin and find they have a mean concentration of 7.0
ug/mL with a standard deviation of 2.0 µg/mL. Assume
the underlying population distribution of concentrations is
normally distributed.
ModA
*6.30 Find a 95% CI for the population mean concentration.
*6.31 Find a 99% Cl for the population variance of the
concentrations.
*6.32 How large a sample would be needed to ensure
that the length of the CI in Problem 6.30 is 0.5 ug/mL
assuming the sample standard deviation remains at
2.0 µg/mL?
WY S6 S din
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Step 1: Write the given information.
VIEWStep 2: Compute 95% confidence interval for population mean concentration.
VIEWStep 3: Compute 95% confidence interval for population variance of the concentration.
VIEWStep 4: Compute the sample size required for the given length of confidence level.
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