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Name: To determine whether a new drug designed to lower a person’s heart rat
Uploaded: 2024-03-20T07:07:12.000Z
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Description: To determine whether a new drug designed to lower a person’s heart rate is effective or not, Dr. Johnson gives the medicine to a random sample of 100 patients with Rapid Heart Rhythm (RHR) and obtains a mean of 128. Dr. Johnson knows the heart rate

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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To determine whether a new drug designed to lower a person’s heart rate is effective or not, Dr. Johnson gives the medicine to a random sample of 100 patients with Rapid Heart Rhythm (RHR) and obtains a mean of 128. Dr. Johnson knows the heart rate of the population of individuals with RHR is 135 with a standard deviation of 40. What can the doctor conclude about the new drug? Complete the steps to make a conclusion.

What kind of test is appropriate for this question?

This is a one-tailed test? True or false.

H₀: µ_________135 H_A:µ_________135

Use your table to find the correct critical value ________

Enter just the numerical part of the obtained value for this sample.

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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