Differential Equations with Boundary-Value Problems
9th Edition
ISBN: 9781337632515
Author: Dennis G. Zill
Publisher: Cengage Learning US
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Chapter 11.5, Problem 2E
To determine
The first four non-zero
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The systolic blood pressure of individuals is thought to be related to both age and weight. Let the systolic blood pressure, age, and weight be represented by the variables x1, x2, and x3, respectively. Suppose that Minitab was used to generate the following descriptive statistics, correlations, and regression analysis for a random sample of 15 individuals.
Descriptive Statistics
Variable
N
Mean
Median
TrMean
StDev
SE Mean
x 1
15
154.14
154.34
154.14
3.842
0.992000
x 2
15
59.69
60.19
59.69
1.462
0.377487
x 3
15
205.55
204.75
205.55
4.558
1.176871
Variable
Minimum
Maximum
Q1
Q3
x 1
125
178
141.803
167.244
x 2
41
80
47.754
78.415
x 3
126
240
140.395
224.008
Correlations (Pearson)
x 1
x 2
x 2
0.892
x 3
0.839
0.567
Regression Analysis
The regression equation is
x 1 = 0.883 + 1.257x2 + 0.871x3
Predictor
Coef
StDev
T
P
Constant
0.883
0.635
1.39
0.095
x 2
1.257
0.635
1.98
0.036
x 3
0.871
0.419
2.08
0.030
S = 0.428
R-sq = 92.7 %…
According to health professionals, a person’s weight is expected to increase with age. To examine that statement, a nutritionist collected data from 11 random females from different age categories between the ages of 21 and 43. In the following table, x is the age of a person and y is the weight in pounds.
x, age
21
24
27
29
31
33
35
38
40
42
43
y, weight in lb
121.4
122.3
130.3
131.7
133.3
134.6
136.7
138.4
140.3
142.0
145.1
Select the correct graph of the least-squares line on a scatter diagram.
Good Day,
Would appreciate any assistance with this query.
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Chapter 11 Solutions
Differential Equations with Boundary-Value Problems
Ch. 11.1 - In problem 16 show that the given functions are...Ch. 11.1 - In problem 16 show that the given functions are...Ch. 11.1 - In problem 16 show that the given functions are...Ch. 11.1 - In problem 16 show that the given functions are...Ch. 11.1 - In problem 16 show that the given functions are...Ch. 11.1 - Prob. 6ECh. 11.1 - Prob. 7ECh. 11.1 - In Problems 712 show that the given set of...Ch. 11.1 - In Problems 712 show that the given set of...Ch. 11.1 - In Problems 712 show that the given set of...
Ch. 11.1 - In Problems 712 show that the given set of...Ch. 11.1 - In Problems 712 show that the given set of...Ch. 11.1 - In Problems 13 and 14 verify by direct integration...Ch. 11.1 - In Problems 13 and 14 verify by direct integration...Ch. 11.1 - Let {n(x)} be an orthogonal set of functions on...Ch. 11.1 - Let {n(x)} be an orthogonal set of functions on...Ch. 11.1 - Let {n(x)} be an orthogonal set of functions on...Ch. 11.1 - From Problem 1 we know that f1(x) = x and f2(x) =...Ch. 11.1 - A real-valued function is said to be periodic with...Ch. 11.1 - A real-valued function is said to be periodic with...Ch. 11.1 - Prob. 21ECh. 11.1 - A real-valued function is said to be periodic with...Ch. 11.1 - A real-valued function is said to be periodic with...Ch. 11.1 - A real-valued function is said to be periodic with...Ch. 11.1 - Prob. 25ECh. 11.1 - Prob. 26ECh. 11.1 - Prob. 27ECh. 11.1 - Relate the orthogonal set B in Problem 27 with a...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 1–16 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - Prob. 13ECh. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 116 find the Fourier series of f on...Ch. 11.2 - In Problems 17 and 18 sketch the periodic...Ch. 11.2 - In Problems 17 and 18 sketch the periodic...Ch. 11.2 - Use the result of Problem 5 to show that...Ch. 11.2 - Prob. 20ECh. 11.2 - Use the result of Problem 7 to show that...Ch. 11.2 - Prob. 22ECh. 11.2 - Prob. 23ECh. 11.2 - Prob. 24ECh. 11.3 - In Problems 110 determine whether the function is...Ch. 11.3 - Prob. 2ECh. 11.3 - In Problems 110 determine whether the function is...Ch. 11.3 - In Problems 110 determine whether the function is...Ch. 11.3 - Prob. 5ECh. 11.3 - Prob. 6ECh. 11.3 - Prob. 7ECh. 11.3 - Prob. 8ECh. 11.3 - Prob. 9ECh. 11.3 - Prob. 10ECh. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - Prob. 15ECh. 11.3 - In Problems 11-24 expand the given function in an...Ch. 11.3 - Prob. 17ECh. 11.3 - In Problems 11-24 expand the given function in an...Ch. 11.3 - In Problems 11-24 expand the given function in an...Ch. 11.3 - In Problems 1-10 determine whether the function is...Ch. 11.3 - In Problems 1-10 determine whether the function is...Ch. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - In Problems 1124 expand the given function in an...Ch. 11.3 - Prob. 24ECh. 11.3 - In Problems 2534 find the half-range cosine and...Ch. 11.3 - Prob. 26ECh. 11.3 - Prob. 27ECh. 11.3 - In Problems 2534 find the half-range cosine and...Ch. 11.3 - Prob. 29ECh. 11.3 - Prob. 30ECh. 11.3 - Prob. 31ECh. 11.3 - In Problems 2534 find the half-range cosine and...Ch. 11.3 - In Problems 2534 find the half-range cosine and...Ch. 11.3 - Prob. 34ECh. 11.3 - In Problems 3538 expand the given function in a...Ch. 11.3 - In Problems 3538 expand the given function in a...Ch. 11.3 - Prob. 37ECh. 11.3 - In Problems 3538 expand the given function in a...Ch. 11.3 - Prob. 39ECh. 11.3 - In Problems 3942 suppose the function y = f(x), 0 ...Ch. 11.3 - In Problems 3942 suppose the function y = f(x), 0 ...Ch. 11.3 - Prob. 42ECh. 11.3 - In Problems 43 and 44 proceed as in Example 4 to...Ch. 11.3 - In Problems 43 and 44 proceed as in Example 4 to...Ch. 11.3 - Prob. 45ECh. 11.3 - Prob. 46ECh. 11.3 - Suppose a uniform beam of length L is simply...Ch. 11.3 - Prob. 50ECh. 11.3 - Prob. 51ECh. 11.3 - Prob. 52ECh. 11.3 - Prob. 53ECh. 11.3 - Prob. 54ECh. 11.4 - Consider y + y = 0 subject to y(0) = 0, y(L) = 0....Ch. 11.4 - Consider y + y = 0 subject to the periodic...Ch. 11.4 - Prob. 5ECh. 11.4 - Prob. 6ECh. 11.4 - (a) Find the eigenvalues and eigenfunctions of the...Ch. 11.4 - (a) Find the eigenvalues and eigenfunctions of the...Ch. 11.4 - Laguerres differential equation xy + (1 x)y + ny...Ch. 11.4 - Hermites differential equation y2xy+2ny=0,n=0,1,2,...Ch. 11.4 - Consider the regular Sturm-Liouville problem:...Ch. 11.4 - (a) Find the eigenfunctions and the equation that...Ch. 11.4 - Prob. 13ECh. 11.5 - Prob. 1ECh. 11.5 - Prob. 2ECh. 11.5 - Prob. 3ECh. 11.5 - Prob. 4ECh. 11.5 - In Problems 36 expand f(x) = 1, 0 x 2, in a...Ch. 11.5 - In Problems 36 expand f(x) = 1, 0 x 2, in a...Ch. 11.5 - In Problems 7-10 expand the given function in a...Ch. 11.5 - Prob. 8ECh. 11.5 - Prob. 9ECh. 11.5 - Prob. 10ECh. 11.5 - Prob. 13ECh. 11.5 - Prob. 14ECh. 11.5 - In Problems 15 and 16 write out the first five...Ch. 11.5 - Prob. 16ECh. 11.5 - Prob. 17ECh. 11.5 - Prob. 18ECh. 11.5 - Prob. 19ECh. 11.5 - Prob. 20ECh. 11.5 - Prob. 21ECh. 11.5 - Prob. 22ECh. 11.5 - Prob. 23ECh. 11.5 - Prob. 24ECh. 11 - In Problems 16 fill in the blank or answer true or...Ch. 11 - Prob. 2RECh. 11 - Prob. 3RECh. 11 - Prob. 4RECh. 11 - Prob. 5RECh. 11 - Prob. 6RECh. 11 - Prob. 7RECh. 11 - Prob. 8RECh. 11 - Prob. 9RECh. 11 - Prob. 10RECh. 11 - Prob. 11RECh. 11 - Prob. 12RECh. 11 - Prob. 13RECh. 11 - Prob. 14RECh. 11 - Prob. 15RECh. 11 - Prob. 16RECh. 11 - Prob. 17RECh. 11 - Consider the portion of the periodic function f...Ch. 11 - Prob. 19RECh. 11 - Find the eigenvalues and eigenfunctions of the...Ch. 11 - Prob. 21RECh. 11 - Prob. 22RECh. 11 - Prob. 23RECh. 11 - Prob. 24RECh. 11 - Prob. 25RE
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