Answered: rine headaches. Two drugs are currently…

Name: Pfizer, Inc. a major U.S. Pharmaceutical company, is developing a new
Uploaded: 2024-03-20T07:07:00.000Z
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Description: Pfizer, Inc. a major U.S. Pharmaceutical company, is developing a new drug aimed at reducing the pain associated with margarine headaches. Two drugs are currently under development. Once consideration in the evaluation of the medication is how long t

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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Pfizer, Inc. a major U.S. Pharmaceutical company, is developing a new drug aimed at reducing the pain associated with margarine headaches. Two drugs are currently under development. Once consideration in the evaluation of the medication is how long the painkilling effects of the drugs last. A random sample of 12 tests for each drug revealed the following times (in minutes) until the effects of the drug were neutralized. The random samples are as follows. Drug A 258 214 243 227 235 222 240 245 245 234 243 211 Drug B 219 283 291 277 258 273 289 260 286 265 284 266 A. Calculate the mean and standard deviation for each of the two drugs. B. Based on the sample means calculated in part a, which drug appears to be effective longer? C. Based on the sample standard Deviation calculated in part a, which drug appears to have the greater variability in effect time? D. Calculate the sample coefficient of variation for the two drugs. Based on the coefficient of variation, which drug has the greater variability in its time until the effect is neutralized? Solve a, b ,c, d

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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