Basic Technical Mathematics
11th Edition
ISBN: 9780134437705
Author: Washington
Publisher: PEARSON
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Chapter 30, Problem 73RE
To determine
To express: The right side of the equation
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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]
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of 2
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The set of all 3 x 3 upper triangular matrices
6) Determine whether each of the following sets, together with the standard
operations, is a vector space. If it is, then simply write 'Vector space'. You do not
have to prove all ten vector space axioms. If it is not, then identify one of the ten
vector space axioms with its number in the attached sheet that fails and also show
that how it fails.
a) The set of all polynomials of degree four or less.
b) The set of all 2 x 2 singular matrices.
c) The set {(x, y) : x ≥ 0, y is a real number}.
d) C[0,1], the set of all continuous functions defined on the interval [0,1].
7) Given u = (-2,1,1) and v = (4,2,0) are two vectors in R³-space. Find u xv and
show that it is orthogonal to both u and v.
8) a) Find the equation of the least squares regression line for the data points
below.
(-2,0), (0,2), (2,2)
b) Graph the points and the line that you found from a) on the same Cartesian
coordinate plane.
1. A consumer group claims that the mean annual consumption of cheddar cheese by a person in
the United States is at most 10.3 pounds. A random sample of 100 people in the United States has
a mean annual cheddar cheese consumption of 9.9 pounds. Assume the population standard
deviation is 2.1 pounds. At a = 0.05, can you reject the claim? (Adapted from U.S. Department of
Agriculture)
State the hypotheses:
Calculate the test statistic:
Calculate the P-value:
Conclusion (reject or fail to reject Ho):
2. The CEO of a manufacturing facility claims that the mean workday of the company's assembly
line employees is less than 8.5 hours. A random sample of 25 of the company's assembly line
employees has a mean workday of 8.2 hours. Assume the population standard deviation is 0.5
hour and the population is normally distributed. At a = 0.01, test the CEO's claim.
State the hypotheses:
Calculate the test statistic:
Calculate the P-value:
Conclusion (reject or fail to reject Ho):
Statistics
Chapter 30 Solutions
Basic Technical Mathematics
Ch. 30.1 - Prob. 1PECh. 30.1 - Prob. 2PECh. 30.1 - Prob. 1ECh. 30.1 - Prob. 2ECh. 30.1 - Prob. 3ECh. 30.1 - Prob. 4ECh. 30.1 - Prob. 5ECh. 30.1 - Prob. 6ECh. 30.1 - Prob. 7ECh. 30.1 - Prob. 8E
Ch. 30.1 - Prob. 9ECh. 30.1 - Prob. 10ECh. 30.1 - Prob. 11ECh. 30.1 - Prob. 12ECh. 30.1 - Prob. 13ECh. 30.1 - Prob. 14ECh. 30.1 - Prob. 15ECh. 30.1 - Prob. 16ECh. 30.1 - Prob. 17ECh. 30.1 - Prob. 18ECh. 30.1 - Prob. 19ECh. 30.1 - Prob. 20ECh. 30.1 - Prob. 21ECh. 30.1 - Prob. 22ECh. 30.1 - Prob. 23ECh. 30.1 - Prob. 24ECh. 30.1 - Prob. 25ECh. 30.1 - Prob. 26ECh. 30.1 - Prob. 27ECh. 30.1 - Prob. 28ECh. 30.1 - Prob. 29ECh. 30.1 - Prob. 30ECh. 30.1 - Prob. 31ECh. 30.1 - Prob. 32ECh. 30.1 - Prob. 33ECh. 30.1 - Prob. 34ECh. 30.1 - Prob. 35ECh. 30.1 - Prob. 36ECh. 30.1 - Prob. 37ECh. 30.1 - Prob. 38ECh. 30.1 - Prob. 39ECh. 30.1 - Prob. 40ECh. 30.1 - Prob. 41ECh. 30.1 - In Exercises 39–48, solve the given problems as...Ch. 30.1 - Prob. 43ECh. 30.1 - Prob. 44ECh. 30.1 - In Exercises 39–48, solve the given problems as...Ch. 30.1 - Prob. 46ECh. 30.1 - Prob. 47ECh. 30.1 - Prob. 48ECh. 30.2 - Find the first four terms of the Maclaurin series...Ch. 30.2 - Prob. 1ECh. 30.2 - Prob. 2ECh. 30.2 - Prob. 3ECh. 30.2 - Prob. 4ECh. 30.2 - Prob. 5ECh. 30.2 - Prob. 6ECh. 30.2 - Prob. 7ECh. 30.2 - Prob. 8ECh. 30.2 - Prob. 9ECh. 30.2 - Prob. 10ECh. 30.2 - Prob. 11ECh. 30.2 - Prob. 12ECh. 30.2 - Prob. 13ECh. 30.2 - Prob. 14ECh. 30.2 - Prob. 15ECh. 30.2 - Prob. 16ECh. 30.2 - Prob. 17ECh. 30.2 - Prob. 18ECh. 30.2 - Prob. 19ECh. 30.2 - Prob. 20ECh. 30.2 - Prob. 21ECh. 30.2 - Prob. 22ECh. 30.2 - Prob. 23ECh. 30.2 - Prob. 24ECh. 30.2 - Prob. 25ECh. 30.2 - Prob. 26ECh. 30.2 - Prob. 27ECh. 30.2 - In Exercises 21–28, find the first two nonzero...Ch. 30.2 - Prob. 29ECh. 30.2 - Prob. 30ECh. 30.2 - In Exercises 29–44, solve the given problems.
Is...Ch. 30.2 - In Exercises 29–44, solve the given problems.
Is...Ch. 30.2 - Prob. 33ECh. 30.2 - Prob. 34ECh. 30.2 - Prob. 35ECh. 30.2 - Prob. 36ECh. 30.2 - In Exercises 29–44, solve the given problems.
The...Ch. 30.2 - Prob. 38ECh. 30.2 - Prob. 39ECh. 30.2 - Prob. 40ECh. 30.2 - Prob. 41ECh. 30.2 - Prob. 42ECh. 30.2 - Prob. 43ECh. 30.2 - Prob. 44ECh. 30.3 - Using the Maclaurin series for ln(1 + x), find the...Ch. 30.3 - Prob. 2PECh. 30.3 - Prob. 1ECh. 30.3 - Prob. 2ECh. 30.3 - Prob. 3ECh. 30.3 - Prob. 4ECh. 30.3 - Prob. 5ECh. 30.3 - In Exercises 3–10, find the first four nonzero...Ch. 30.3 - Prob. 7ECh. 30.3 - Prob. 8ECh. 30.3 - In Exercises 3–10, find the first four nonzero...Ch. 30.3 - Prob. 10ECh. 30.3 - Prob. 11ECh. 30.3 - Prob. 12ECh. 30.3 - In Exercises 11–16, evaluate the given integrals...Ch. 30.3 - Prob. 14ECh. 30.3 - Prob. 15ECh. 30.3 - Prob. 16ECh. 30.3 - Prob. 17ECh. 30.3 - Prob. 18ECh. 30.3 - In Exercises 17–30, find the indicated series by...Ch. 30.3 - Prob. 20ECh. 30.3 - Prob. 21ECh. 30.3 - In Exercises 17–30, find the indicated series by...Ch. 30.3 - Prob. 23ECh. 30.3 - Prob. 24ECh. 30.3 - Prob. 25ECh. 30.3 - Prob. 26ECh. 30.3 - Prob. 27ECh. 30.3 - Prob. 28ECh. 30.3 - Prob. 29ECh. 30.3 - Prob. 30ECh. 30.3 - Prob. 31ECh. 30.3 - Prob. 32ECh. 30.3 - Prob. 33ECh. 30.3 - Prob. 34ECh. 30.3 - Prob. 35ECh. 30.3 - Prob. 36ECh. 30.3 - Prob. 37ECh. 30.3 - Prob. 38ECh. 30.3 - Prob. 39ECh. 30.3 - Prob. 40ECh. 30.3 - Prob. 41ECh. 30.3 - Prob. 42ECh. 30.3 - Prob. 43ECh. 30.3 - Prob. 44ECh. 30.3 - Prob. 45ECh. 30.3 - Prob. 46ECh. 30.4 - Using three terms of the appropriate series,...Ch. 30.4 - Prob. 2PECh. 30.4 - Prob. 1ECh. 30.4 - Prob. 2ECh. 30.4 - Prob. 3ECh. 30.4 - Prob. 4ECh. 30.4 - Prob. 5ECh. 30.4 - Prob. 6ECh. 30.4 - Prob. 7ECh. 30.4 - Prob. 8ECh. 30.4 - Prob. 9ECh. 30.4 - Prob. 10ECh. 30.4 - Prob. 11ECh. 30.4 - Prob. 12ECh. 30.4 - In Exercises 3–20, calculate the value of each of...Ch. 30.4 - Prob. 14ECh. 30.4 - Prob. 15ECh. 30.4 - Prob. 16ECh. 30.4 - Prob. 17ECh. 30.4 - Prob. 18ECh. 30.4 - Prob. 19ECh. 30.4 - Prob. 20ECh. 30.4 - Prob. 21ECh. 30.4 - Prob. 22ECh. 30.4 - Prob. 23ECh. 30.4 - Prob. 24ECh. 30.4 - Prob. 25ECh. 30.4 - Prob. 26ECh. 30.4 - Prob. 27ECh. 30.4 - Prob. 28ECh. 30.4 - Prob. 29ECh. 30.4 - Prob. 30ECh. 30.4 - Prob. 31ECh. 30.4 - Prob. 32ECh. 30.4 - Prob. 33ECh. 30.4 - Prob. 34ECh. 30.4 - Prob. 35ECh. 30.4 - Prob. 36ECh. 30.4 - In Exercises 29–40, solve the given problems by...Ch. 30.4 - Prob. 38ECh. 30.4 - Prob. 39ECh. 30.4 - Prob. 40ECh. 30.5 - Expand f(x) = ex in a Taylor series with a = 3.
Ch. 30.5 - Prob. 1ECh. 30.5 - Prob. 2ECh. 30.5 - Prob. 3ECh. 30.5 - Prob. 4ECh. 30.5 - Prob. 5ECh. 30.5 - Prob. 6ECh. 30.5 - Prob. 7ECh. 30.5 - Prob. 8ECh. 30.5 - Prob. 9ECh. 30.5 - Prob. 10ECh. 30.5 - In Exercises 11–22, find the first three nonzero...Ch. 30.5 - Prob. 12ECh. 30.5 - Prob. 13ECh. 30.5 - Prob. 14ECh. 30.5 - Prob. 15ECh. 30.5 - Prob. 16ECh. 30.5 - In Exercises 11–22, find the first three nonzero...Ch. 30.5 - In Exercises 11–22, find the first three nonzero...Ch. 30.5 - Prob. 19ECh. 30.5 - Prob. 20ECh. 30.5 - Prob. 21ECh. 30.5 - Prob. 22ECh. 30.5 - Prob. 23ECh. 30.5 - Prob. 24ECh. 30.5 - Prob. 25ECh. 30.5 - Prob. 26ECh. 30.5 - Prob. 27ECh. 30.5 - Prob. 28ECh. 30.5 - Prob. 29ECh. 30.5 - Prob. 30ECh. 30.5 - Prob. 31ECh. 30.5 - Prob. 33ECh. 30.5 - Prob. 34ECh. 30.5 - In Exercises 31–38, solve the given...Ch. 30.5 - Prob. 36ECh. 30.5 - In Exercises 31–38, solve the given...Ch. 30.5 - Prob. 38ECh. 30.5 - In Exercises 39–42, use a calculator to display...Ch. 30.5 - In Exercises 39–42, use a calculator to display...Ch. 30.5 - In Exercises 39–42, use a calculator to display...Ch. 30.5 - In Exercises 39–42, use a calculator to display...Ch. 30.6 - In Example 2, in the definition of f(x), replace 1...Ch. 30.6 - Prob. 1ECh. 30.6 - Prob. 2ECh. 30.6 - In Exercises 3–14, find at least three nonzero...Ch. 30.6 - Prob. 4ECh. 30.6 - In Exercises 3–14, find at least three nonzero...Ch. 30.6 - Prob. 6ECh. 30.6 - In Exercises 3–14, find at least three nonzero...Ch. 30.6 - Prob. 8ECh. 30.6 - In Exercises 3–14, find at least three nonzero...Ch. 30.6 - Prob. 10ECh. 30.6 - Prob. 11ECh. 30.6 - Prob. 12ECh. 30.6 - Prob. 13ECh. 30.6 - Prob. 14ECh. 30.6 - Prob. 15ECh. 30.6 - Prob. 16ECh. 30.6 - Prob. 17ECh. 30.6 - Prob. 18ECh. 30.6 - Prob. 19ECh. 30.6 - Prob. 20ECh. 30.6 - In Exercises 21–24, solve the given problems.
21....Ch. 30.6 - In Exercises 21–24, solve the given problems.
22....Ch. 30.6 - In Exercises 21–24, solve the given problems.
23....Ch. 30.6 - Prob. 24ECh. 30.7 - Determine whether the following functions are even...Ch. 30.7 - Prob. 2PECh. 30.7 - Prob. 3PECh. 30.7 - In Exercises 1–4, write the Fourier series for...Ch. 30.7 - In Exercises 1–4, write the Fourier series for...Ch. 30.7 - In Exercises 1–4, write the Fourier series for...Ch. 30.7 - In Exercises 1–4, write the Fourier series for...Ch. 30.7 - In Exercises 5−12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 5–12, determine whether the given...Ch. 30.7 - In Exercises 13–16, determine whether the Fourier...Ch. 30.7 - In Exercises 13–16, determine whether the Fourier...Ch. 30.7 - In Exercises 13–16, determine whether the Fourier...Ch. 30.7 - In Exercises 13–16, determine whether the Fourier...Ch. 30.7 - Prob. 17ECh. 30.7 - Prob. 18ECh. 30.7 - Prob. 19ECh. 30.7 - Prob. 20ECh. 30.7 - Prob. 21ECh. 30.7 - Prob. 22ECh. 30.7 - Prob. 23ECh. 30.7 - Prob. 24ECh. 30.7 - Prob. 25ECh. 30.7 - Prob. 26ECh. 30.7 - Prob. 27ECh. 30.7 - In Exercises 23–28, solve the given problems.
28....Ch. 30 - Prob. 1RECh. 30 - Prob. 2RECh. 30 - Prob. 3RECh. 30 - Prob. 4RECh. 30 - Prob. 5RECh. 30 - Prob. 6RECh. 30 - Prob. 7RECh. 30 - Prob. 8RECh. 30 - Prob. 9RECh. 30 - Prob. 10RECh. 30 - Prob. 11RECh. 30 - Prob. 12RECh. 30 - Prob. 13RECh. 30 - Prob. 14RECh. 30 - Prob. 15RECh. 30 - Prob. 16RECh. 30 - Prob. 17RECh. 30 - Prob. 18RECh. 30 - Prob. 19RECh. 30 - Prob. 20RECh. 30 - Prob. 21RECh. 30 - Prob. 22RECh. 30 - Prob. 23RECh. 30 - Prob. 24RECh. 30 - Prob. 25RECh. 30 - Prob. 26RECh. 30 - Prob. 27RECh. 30 - Prob. 28RECh. 30 - Prob. 29RECh. 30 - Prob. 30RECh. 30 - Prob. 31RECh. 30 - Prob. 32RECh. 30 - Prob. 33RECh. 30 - Prob. 34RECh. 30 - Prob. 35RECh. 30 - Prob. 36RECh. 30 - Prob. 37RECh. 30 - Prob. 38RECh. 30 - Prob. 39RECh. 30 - Prob. 40RECh. 30 - Prob. 41RECh. 30 - Prob. 42RECh. 30 - Prob. 43RECh. 30 - Prob. 44RECh. 30 - Prob. 45RECh. 30 - Prob. 46RECh. 30 - Prob. 47RECh. 30 - Prob. 48RECh. 30 - Prob. 49RECh. 30 - Prob. 50RECh. 30 - Prob. 51RECh. 30 - Prob. 52RECh. 30 - Prob. 53RECh. 30 - Prob. 54RECh. 30 - Prob. 55RECh. 30 - In Exercises 43–80, solve the given...Ch. 30 - Prob. 57RECh. 30 - Prob. 58RECh. 30 - Prob. 59RECh. 30 - Prob. 60RECh. 30 - Prob. 61RECh. 30 - Prob. 62RECh. 30 - Prob. 63RECh. 30 - Prob. 64RECh. 30 - Prob. 65RECh. 30 - Prob. 66RECh. 30 - Prob. 67RECh. 30 - Prob. 68RECh. 30 - Prob. 69RECh. 30 - Prob. 70RECh. 30 - Prob. 71RECh. 30 - Prob. 72RECh. 30 - Prob. 73RECh. 30 - Prob. 74RECh. 30 - Prob. 75RECh. 30 - Prob. 76RECh. 30 - Prob. 77RECh. 30 - Prob. 78RECh. 30 - Prob. 79RECh. 30 - Prob. 80RECh. 30 - Prob. 81RECh. 30 - Prob. 1PTCh. 30 - Prob. 2PTCh. 30 - Prob. 3PTCh. 30 - Prob. 4PTCh. 30 - Prob. 5PTCh. 30 - Prob. 6PTCh. 30 - Prob. 7PT
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