EBK MATHEMATICS FOR MACHINE TECHNOLOGY
7th Edition
ISBN: 9780100548169
Author: SMITH
Publisher: YUZU
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Chapter 82, Problem 11A
To determine
Analyze the number
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5. The volume V of a given mass of
monoatomic gas changes with temperat re
T according to the relation
V = KT2/3. The work done when
temperature changes by 90 K will be xR.
The value of x is
(a) 60
(b)20
(c)30
S
(d)90
Consider a matrix
3
-2
1
A =
0
5 4
-6
2
-1
Define matrix B as transpose of the inverse of matrix A. Find the determinant of matrix A + B.
5) State any theorems that you use in determining your solution.
a) Suppose you are given a model with two explanatory variables such that:
Yi = a +ẞ1x1 + ẞ2x2i + Ui, i = 1, 2, ... n
Using partial differentiation derive expressions for the intercept and slope
coefficients for the model above.
[25 marks]
b)
A production function is specified as:
Yi = α + B₁x1i + ẞ2x2i + Ui,
i = 1, 2, ... n,
u₁~N(0,σ²)
where:
y = log(output), x₁ = log(labor input), x2 = log(capital input)
The results are as follows:
x₁ = 10, x2 = 5, ỹ = 12, S11 = 12, S12= 8, S22 = 12, S₁y = 10,
= 8, Syy = 10,
S2y
n = 23 (individual firms)
i) Compute values for the intercept, the slope coefficients and σ².
[20 marks]
ii)
Show that SE (B₁) = 0.102.
[15 marks]
iii)
Test the hypotheses: ẞ1
=
1 and B2 = 0, separately at the 5%
significance level. You may take without calculation that SE (a) = 0.78
and SE (B2) = 0.102
[20 marks]
iv)
Find a 95% confidence interval for the estimate ẞ2.
[20 marks]
Chapter 82 Solutions
EBK MATHEMATICS FOR MACHINE TECHNOLOGY
Ch. 82 - Prob. 1ACh. 82 - Prob. 2ACh. 82 - Prob. 3ACh. 82 - Prob. 4ACh. 82 - Prob. 5ACh. 82 - Prob. 6ACh. 82 - Prob. 7ACh. 82 - Prob. 8ACh. 82 - Prob. 9ACh. 82 - Analyze the following numbers. 0.802
Ch. 82 - Prob. 11ACh. 82 - Prob. 12ACh. 82 - Prob. 13ACh. 82 - Prob. 14ACh. 82 - Prob. 15ACh. 82 - Prob. 16ACh. 82 - Prob. 17ACh. 82 - Prob. 18ACh. 82 - Prob. 19ACh. 82 - Prob. 20ACh. 82 - Prob. 21ACh. 82 - Prob. 22ACh. 82 - Prob. 23ACh. 82 - Prob. 24ACh. 82 - Prob. 25ACh. 82 - Prob. 26ACh. 82 - Prob. 27ACh. 82 - Prob. 28ACh. 82 - Prob. 29ACh. 82 - Prob. 30ACh. 82 - Prob. 31ACh. 82 - Prob. 32ACh. 82 - Prob. 33ACh. 82 - Prob. 34ACh. 82 - Prob. 35ACh. 82 - Express the following binary numbers as decimal...Ch. 82 - Prob. 37ACh. 82 - Prob. 38ACh. 82 - Prob. 39ACh. 82 - Prob. 40ACh. 82 - Prob. 41ACh. 82 - Prob. 42ACh. 82 - Prob. 43ACh. 82 - Prob. 44ACh. 82 - Prob. 45ACh. 82 - Prob. 46ACh. 82 - Prob. 47ACh. 82 - Prob. 48ACh. 82 - Prob. 49ACh. 82 - Prob. 50ACh. 82 - Prob. 51ACh. 82 - Prob. 52ACh. 82 - Express the following decimal numbers as binary...Ch. 82 - Prob. 54ACh. 82 - Prob. 55ACh. 82 - Prob. 56ACh. 82 - Express the following decimal numbers as binary...
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