Answered: Listed below are body temperatures from…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter4: Eigenvalues And Eigenvectors

Section4.6: Applications And The Perron-frobenius Theorem

Problem 22EQ

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Section 9.3

Question #2

Listed below are body temperatures from five different subjects measured at 8 AM and again at 12 AM. Find the values of d^--and s_d. In general, what does μ_drepresent?

Temperature (°F) at 8 AM	98.2	99.1	97.2	97.7	97.5
Temperature (°F) at 12 AM	99.0	99.8	97.5	97.3	97.9

Temperature (°F) at 8 AM

98.2

99.1

97.2

97.7

97.5

Temperature (°F) at 12 AM

99.0

99.8

97.5

97.3

97.9

Let the temperature at 8 AM be the first sample, and the temperature at 12 AM be the second sample. Find the values of d^-- and s_d.

d= _________________

(Type an integer or a decimal. Do not round.)

s_d= ____________

(Round to two decimal places as needed.)

In general, what does μ_drepresent?

A. The difference of the population means of the two populations

B. The mean of the differences from the population of matched data

C. The mean value of the differences for the paired sample data

D. The mean of the means of each matched pair from the population of matched data

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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