Watch your cholesterol: A sample of 290 patients between the ages of 38 and 82 were given a combination of drugs ezetimibeand simvastatin. They achieved a mean reduction in total cholesterol of 0.85 millimole per liter. Assume the population standarddeviation is o =0.18. Answer the following question. (c) Based on the confidence interval constructed in part (a), is it likely that the mean reduction in cholesterol level is lessthan 0.90?The mean reduction in total cholesterol (Choose one) v likely to be less than 0.90.isis not Watch your cholesterol: A sample of 290 patients between the ages of 38and 82 were given a combination of drugs ezetimibeand simvastatin. They achieved a mean reduction in total cholesterol of 0.85 millimole per liter. Assume the population standarddeviation is o=0.18.Part 1 of 3

The random variable reduction in total cholesterol follows normal distribution. We have to test…

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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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Watch your cholesterol: A sample of 290 patients between the ages of 38 and 82 were given a combination of drugs ezetimibe and simvastatin. They achieved a mean reduction in total cholesterol of 0.85 millimole per liter. Assume the population standard deviation is o =0.18. Answer the following question.

(c) Based on the confidence interval constructed in part (a), is it likely that the mean reduction in cholesterol level is less
than 0.90?
The mean reduction in total cholesterol (Choose one) v likely to be less than 0.90.
is
is not

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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