Differential Equations and Linear Algebra (4th Edition)
4th Edition
ISBN: 9780321964670
Author: Stephen W. Goode, Scott A. Annin
Publisher: PEARSON
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Chapter 5.4, Problem 9P
For Problems 8-9, find the equation of the least squares parabola (sometimes called the
The data points given in Problem 4
4.
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We use the form = a + bx for the least-squares line. In some computer printouts, the least-squares equation is not given directly. Instead, the value of the constant a is given, and the coefficient b of the explanatory or predictor variable is displayed. Sometimes a is referred to as the constant, and sometimes as the intercept. Data from Climatology Report No. 77-3 of the Department of Atmospheric Science, Colorado State University, showed the following relationship between elevation (in thousands of feet) and average number of frost-free days per year in Colorado locations.
A Minitab printout provides the following information.
Predictor
Coef
SE Coef
T
P
Constant
319.59
28.31
11.24
0.002
Elevation
-31.650
3.511
-8.79
0.003
S = 11.8603
R-Sq = 96.8%
Notice that "Elevation" is listed under "Predictor." This means that elevation is the explanatory variable x. Its coefficient is the slope b. "Constant" refers to a in the equation = a + bx.
(a) Use the printout to write…
We use the form = a + bx for the least-squares line. In some computer printouts, the least-squares equation is not given directly. Instead, the value of the constant a is given, and the coefficient b of the explanatory or predictor variable is displayed. Sometimes a is referred to as the constant, and sometimes as the intercept. Data from Climatology Report No. 77-3 of the Department of Atmospheric Science, Colorado State University, showed the following relationship between elevation (in thousands of feet) and average number of frost-free days per year in Colorado locations. Minitab output is provided below.
Predictor Coef SE Coef T P
Constant 318.16 28.31 11.24 0.002
Elevation −30.878 3.511 −8.79 0.003
S = 11.8603 R-Sq = 96.3%
Notice that "Elevation" is listed under "Predictor." This means that elevation is the explanatory variable x. Its coefficient is the slope b. "Constant" refers to a in the equation = a…
We use the form = a + bx for the least-squares line. In some computer printouts, the least-squares equation is not given directly. Instead, the value of the constant a is given, and the coefficient b of the explanatory or predictor variable is displayed. Sometimes a is referred to as the constant, and sometimes as the intercept. Data from Climatology Report No. 77-3 of the Department of Atmospheric Science, Colorado State University, showed the following relationship between elevation (in thousands of feet) and average number of frost-free days per year in Colorado locations.
A Minitab printout provides the following information.
Predictor
Coef
SE Coef
T
P
Constant
318.24
28.31
11.24
0.002
Elevation
-30.327
3.511
-8.79
0.003
S = 11.8603
R-Sq = 95.8%
(a) Use the printout to write the least-squares equation.
=
?+ ?x
(b) For each 1000-foot increase in elevation, how many fewer frost-free days are predicted? (Use 3 decimal places.)
Chapter 5 Solutions
Differential Equations and Linear Algebra (4th Edition)
Ch. 5.1 - True-False Review For Questions a-g, decide if the...Ch. 5.1 - True-False Review For Questions a-g, decide if the...Ch. 5.1 - True-False Review For Questions a-g, decide if the...Ch. 5.1 - True-False Review For Questions a-g, decide if the...Ch. 5.1 - Prob. 6TFRCh. 5.1 - Prob. 7TFRCh. 5.1 - Use the standard inner product in 5 to determine...Ch. 5.1 - Prob. 2PCh. 5.1 - If f(x)=sinx and g(x)=x on [0,], use the function...Ch. 5.1 - If f(x)=sinx and g(x)=2cosx+4 on [0,/2], use the...
Ch. 5.1 - Let m and n be positive real numbers. If f(x)=xm...Ch. 5.1 - If v=(2+i,32i,4+i) and w=(1+i,13i,3i), use the...Ch. 5.1 - If v=(63i,4,2+5i,3i) and w=(i,2i,3i,4i), use the...Ch. 5.1 - Let A=[a11a12a21a22] and B=[b11b12b21b22] be...Ch. 5.1 - Referring to A and B in Problem 8, show that the...Ch. 5.1 - Referring to A and B in Problem 8, show that the...Ch. 5.1 - Referring to A and B in Problem 8, show that the...Ch. 5.1 - For Problems 1213, use the inner product (5.1.13)...Ch. 5.1 - For Problems 1213, use the inner product (5.1.13)...Ch. 5.1 - Let p1(x)=a+bx and p2(x)=c+dx be vectors in P1(R)....Ch. 5.1 - Let V=C0[0,1] and for f and g in V, consider the...Ch. 5.1 - Let V=C0[0,1] and for f and g in V, consider the...Ch. 5.1 - Let V=C0[1,0] and for f and g in V, consider the...Ch. 5.1 - Consider the vector space R2. Define the mapping ,...Ch. 5.1 - For Problems 1921, determine the inner product of...Ch. 5.1 - For Problems 1921, determine the inner product of...Ch. 5.1 - For Problems 1921, determine the inner product of...Ch. 5.1 - Prob. 22PCh. 5.1 - Prob. 23PCh. 5.1 - Prob. 24PCh. 5.1 - Prob. 25PCh. 5.1 - Prob. 26PCh. 5.1 - Prob. 27PCh. 5.1 - Prob. 28PCh. 5.1 - Prob. 29PCh. 5.1 - Prob. 30PCh. 5.1 - Prob. 31PCh. 5.1 - Prob. 32PCh. 5.1 - Prob. 33PCh. 5.1 - Prob. 34PCh. 5.1 - Prob. 35PCh. 5.1 - Prob. 36PCh. 5.1 - Prob. 37PCh. 5.2 - Problems For Problems 1-5, determine whether the...Ch. 5.2 - Problems For Problems 1-5, determine whether the...Ch. 5.2 - Problems For Problems 1-5, determine whether the...Ch. 5.2 - Problems For Problems 1-5, determine whether the...Ch. 5.2 - Problems For Problems 1-5, determine whether the...Ch. 5.2 - Problems Let v=(7,2). Determine all non zero...Ch. 5.2 - Problems Let v=(3,6,1). Determine all vectors w in...Ch. 5.2 - Problems Let v1=(1,2,3), v2=(1,1,1). Determine all...Ch. 5.2 - Let v1=(4,0,0,1), v2=(1,2,3,4). Determine all...Ch. 5.2 - Problems For Problems 10-12, show that the given...Ch. 5.2 - Problems For Problems 10-12, show that the given...Ch. 5.2 - Prob. 12PCh. 5.2 - Prob. 13PCh. 5.2 - Prob. 14PCh. 5.2 - Prob. 15PCh. 5.2 - Prob. 16PCh. 5.2 - Prob. 17PCh. 5.2 - Prob. 18PCh. 5.2 - Prob. 19PCh. 5.2 - Prob. 20PCh. 5.2 - Prob. 21PCh. 5.2 - Prob. 22PCh. 5.2 - Prob. 23PCh. 5.2 - Prob. 24PCh. 5.2 - Problems For Problems 22-27, find the distance...Ch. 5.2 - Prob. 26PCh. 5.2 - For Problems 2227, find the distance from the...Ch. 5.2 - Problems For Problems 29-32, use result of problem...Ch. 5.2 - Problems For Problems 29-32, use result of problem...Ch. 5.2 - Prob. 31PCh. 5.2 - Problems For Problems 29-32, use result of problem...Ch. 5.2 - Problems Let {u1,u2,u3} be linearly independent...Ch. 5.2 - Prob. 34PCh. 5.3 - Problems For Problems 110, use the Gram-Schmidt...Ch. 5.3 - Problems For Problems 110, use the Gram-Schmidt...Ch. 5.3 - Problems For Problems 110, use the Gram-Schmidt...Ch. 5.3 - Prob. 4PCh. 5.3 - Prob. 5PCh. 5.3 - Prob. 6PCh. 5.3 - Prob. 7PCh. 5.3 - Prob. 8PCh. 5.3 - Prob. 9PCh. 5.3 - Prob. 10PCh. 5.3 - Prob. 15PCh. 5.3 - Prob. 16PCh. 5.3 - For problems 17-20, determine an orthogonal basis...Ch. 5.3 - For problems 17-20, determine an orthogonal basis...Ch. 5.3 - Prob. 25PCh. 5.4 - True-False Review For Questions a-f, decide if the...Ch. 5.4 - True-False Review For Questions a-f, decide if the...Ch. 5.4 - Prob. 3TFRCh. 5.4 - Prob. 4TFRCh. 5.4 - Prob. 5TFRCh. 5.4 - Prob. 6TFRCh. 5.4 - Prob. 1PCh. 5.4 - Prob. 2PCh. 5.4 - For problems 1-7, find the equation of the least...Ch. 5.4 - Prob. 4PCh. 5.4 - Prob. 5PCh. 5.4 - Prob. 6PCh. 5.4 - Prob. 7PCh. 5.4 - Prob. 8PCh. 5.4 - For Problems 8-9, find the equation of the least...Ch. 5.4 - Prob. 10PCh. 5.4 - Prob. 11PCh. 5.4 - Prob. 12PCh. 5.4 - Prob. 13PCh. 5.4 - Prob. 14PCh. 5.4 - If the size P(t) of a culture of bacteria measured...Ch. 5.4 - Prob. 16PCh. 5.4 - Prob. 17PCh. 5.4 - Prob. 18PCh. 5.5 - For Problem 1-2, determine the angle between the...Ch. 5.5 - Prob. 2APCh. 5.5 - Prob. 3APCh. 5.5 - Prob. 4APCh. 5.5 - Prob. 6APCh. 5.5 - For Problems 69, find an orthogonal basis for the...Ch. 5.5 - For Problems 69, find an orthogonal basis for the...Ch. 5.5 - For Problems 69, find an orthogonal basis for the...Ch. 5.5 - Prob. 11APCh. 5.5 - Prob. 12APCh. 5.5 - Prob. 13APCh. 5.5 - Prob. 14APCh. 5.5 - Prob. 15APCh. 5.5 - Prob. 16APCh. 5.5 - Prob. 17APCh. 5.5 - Prob. 18AP
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