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Name: Imagine that you conducted a study in order to calculate mean resting
Uploaded: 2024-03-20T07:07:12.000Z
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Description: Imagine that you conducted a study in order to calculate mean resting heart rate among patients at a mental health facility. You find that the mean resting heart rate is 77 beats per minutes (BPM) and that the 95% confidence interval for this mean is

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015

1st Edition

ISBN:9781680331141

Author:HOUGHTON MIFFLIN HARCOURT

Publisher:HOUGHTON MIFFLIN HARCOURT

Chapter4: Writing Linear Equations

Section: Chapter Questions

Problem 14CR

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Imagine that you conducted a study in order to calculate mean resting heart rate among patients at a mental health facility. You find that the mean resting heart rate is 77 beats per minutes (BPM) and that the 95% confidence interval for this mean is 7 BPM. Write an interpretation of this 95% confidence interval that is consistent with how we describe 95% confidence intervals in class.

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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