EBK COLLEGE MATHEMATICS FOR TRADES AND
10th Edition
ISBN: 8220106960301
Author: Hobbs
Publisher: PEARSON
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Chapter 1.3, Problem 69E
To determine
The volume of the bin, which is a prism.
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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]
Page < 2
of 2
- ZOOM +
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 1 Solutions
EBK COLLEGE MATHEMATICS FOR TRADES AND
Ch. 1.1 - Perform the indicated operations.
1 − 0.03
Ch. 1.1 - Perform the indicated operations.
0.2(0.03)
Ch. 1.1 - Perform the indicated operations.
1.5 ÷ 0.3
Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - Write two inequalities to compare each pair of...Ch. 1.1 - A house that sold for 183.500 four years ago has...
Ch. 1.1 - Touliatas Nursery sold 786 flats of annual bedding...Ch. 1.1 - The Orlando Renaissance Resort sold 758 rooms for...Ch. 1.1 - The first day a spam filter was installed at...Ch. 1.1 - Write the fractions as decimal numbers. See...Ch. 1.1 - Write the fractions as decimal numbers. See...Ch. 1.1 - Prob. 13ECh. 1.1 - Write the fractions as decimal numbers. See...Ch. 1.1 - Write the fractions as decimal numbers. See...Ch. 1.1 - Write the fractions as decimal numbers. See...Ch. 1.1 - Compare the number pairs and identify the larger...Ch. 1.1 - Prob. 18ECh. 1.1 - Prob. 19ECh. 1.1 - Two micrometer readings are recorded as 0.837 in....Ch. 1.1 - A micrometer reading for a part is 3.85 in. The...Ch. 1.1 - A washer has an inside diameter of 0.33 in. Will...Ch. 1.1 - Prob. 23ECh. 1.1 - Prob. 24ECh. 1.1 - A nurse recorded the weights of two patients as...Ch. 1.1 - Arrange in order from smallest to largest. See...Ch. 1.1 - Arrange in order from smallest to largest. See...Ch. 1.1 - Prob. 28ECh. 1.1 - To change centimeters to inches, multiply by...Ch. 1.1 - Give a reasonable approximate number for the...Ch. 1.1 - Prob. 31ECh. 1.1 - Prob. 32ECh. 1.1 - Prob. 33ECh. 1.1 - Round to the place value indicated. See Example 5....Ch. 1.1 - Round to the place value indicated. See Example 5....Ch. 1.1 - Prob. 36ECh. 1.1 - Prob. 37ECh. 1.1 - Prob. 38ECh. 1.1 - To the nearest tenth, what is the current of a...Ch. 1.1 - If round steak costs 2.78 per pound, what is the...Ch. 1.1 - Prob. 41ECh. 1.1 - Prob. 42ECh. 1.1 - Write in columns and add. See Example 7. 6,017 +...Ch. 1.1 - Prob. 44ECh. 1.1 - Prob. 45ECh. 1.1 - Write in columns and add. 12.8 + 13.52 + 7.86Ch. 1.1 - Prob. 47ECh. 1.1 - Prob. 48ECh. 1.1 - Prob. 49ECh. 1.1 - A part-time hourly worker earned 25.97 on Monday,...Ch. 1.1 - Prob. 51ECh. 1.1 - Prob. 52ECh. 1.1 - Prob. 53ECh. 1.1 - Prob. 54ECh. 1.1 - Estimate the sum for exercises 54–55 by rounding...Ch. 1.1 - Estimate the sum for exercises 54–55 by rounding...Ch. 1.1 - Prob. 57ECh. 1.1 - Prob. 58ECh. 1.1 - Palmer Associates provided the following prices...Ch. 1.1 - Prob. 60ECh. 1.1 - Prob. 61ECh. 1.1 - Prob. 62ECh. 1.1 - Prob. 63ECh. 1.1 - Prob. 64ECh. 1.1 - Prob. 65ECh. 1.1 - Prob. 66ECh. 1.1 - Prob. 67ECh. 1.1 - Prob. 68ECh. 1.1 - Prob. 69ECh. 1.1 - Prob. 70ECh. 1.1 - Prob. 71ECh. 1.1 - Prob. 72ECh. 1.1 - Subtract.
Subtract 13.5 from 21.
Ch. 1.1 - Prob. 74ECh. 1.1 - Subtract.
Find the difference between 42 and...Ch. 1.1 - According to a blueprint, the length of an object...Ch. 1.1 - Prob. 77ECh. 1.1 - Prob. 78ECh. 1.1 - Prob. 79ECh. 1.1 - Prob. 80ECh. 1.1 - Prob. 81ECh. 1.1 - Prob. 82ECh. 1.1 - Prob. 83ECh. 1.1 - Prob. 84ECh. 1.1 - Prob. 85ECh. 1.1 - Prob. 86ECh. 1.1 - Prob. 87ECh. 1.1 - Prob. 88ECh. 1.1 - Prob. 89ECh. 1.1 - Prob. 90ECh. 1.1 - Prob. 91ECh. 1.1 - Prob. 92ECh. 1.1 - Prob. 93ECh. 1.1 - Prob. 94ECh. 1.1 - Each officer in the Public Safety office wrote, on...Ch. 1.1 - Prob. 96ECh. 1.1 - Prob. 97ECh. 1.1 - Multiply the following.
Ch. 1.1 - Multiply the following.
Ch. 1.1 - Prob. 100ECh. 1.1 - Prob. 101ECh. 1.1 - Prob. 102ECh. 1.1 - Prob. 103ECh. 1.1 - Prob. 104ECh. 1.1 - Prob. 105ECh. 1.1 - Prob. 106ECh. 1.1 - Prob. 107ECh. 1.1 - BUS Premier Yard Service treats a lawn that is...Ch. 1.1 - Prob. 109ECh. 1.1 - Prob. 110ECh. 1.1 - Prob. 111ECh. 1.1 - Prob. 112ECh. 1.1 - Prob. 113ECh. 1.1 - Prob. 114ECh. 1.1 - Prob. 115ECh. 1.1 - Divide.
5.12 ÷ 4
Ch. 1.1 - Prob. 117ECh. 1.1 - Prob. 118ECh. 1.1 - Prob. 119ECh. 1.1 - Prob. 120ECh. 1.1 - Divide.
Ch. 1.1 - Prob. 122ECh. 1.1 - Prob. 123ECh. 1.1 - Prob. 124ECh. 1.1 - Prob. 125ECh. 1.1 - Prob. 126ECh. 1.1 - Prob. 127ECh. 1.1 - Prob. 128ECh. 1.1 - Prob. 129ECh. 1.1 - Prob. 130ECh. 1.1 - Prob. 131ECh. 1.1 - Prob. 132ECh. 1.1 - If 12 electrolytic capacitors cost $23.75, find...Ch. 1.1 - Prob. 134ECh. 1.1 - Prob. 135ECh. 1.1 - Prob. 136ECh. 1.1 - Prob. 137ECh. 1.1 - Prob. 138ECh. 1.1 - Find the average, then round to the same place...Ch. 1.2 - Write 23 in standard notation.
Ch. 1.2 - Find
Ch. 1.2 - Write 100 as a power of 10.
Ch. 1.2 - Prob. 1ECh. 1.2 - Prob. 2ECh. 1.2 - Prob. 3ECh. 1.2 - Prob. 4ECh. 1.2 - Prob. 5ECh. 1.2 - Prob. 6ECh. 1.2 - Prob. 7ECh. 1.2 - Prob. 8ECh. 1.2 - Prob. 9ECh. 1.2 - Prob. 10ECh. 1.2 - Prob. 11ECh. 1.2 - Prob. 12ECh. 1.2 - Prob. 13ECh. 1.2 - Prob. 14ECh. 1.2 - Prob. 15ECh. 1.2 - Prob. 16ECh. 1.2 - Prob. 17ECh. 1.2 - Prob. 18ECh. 1.2 - Prob. 19ECh. 1.2 - Prob. 20ECh. 1.2 - Prob. 21ECh. 1.2 - Prob. 22ECh. 1.2 - Prob. 23ECh. 1.2 - Prob. 24ECh. 1.2 - Prob. 25ECh. 1.2 - Prob. 26ECh. 1.2 - Prob. 27ECh. 1.2 - Prob. 28ECh. 1.2 - Prob. 29ECh. 1.2 - Prob. 30ECh. 1.2 - Prob. 31ECh. 1.2 - Prob. 32ECh. 1.2 - Prob. 33ECh. 1.2 - Prob. 34ECh. 1.2 - Prob. 35ECh. 1.2 - Prob. 36ECh. 1.2 - Prob. 37ECh. 1.2 - Prob. 38ECh. 1.2 - Prob. 39ECh. 1.2 - Prob. 40ECh. 1.2 - Prob. 41ECh. 1.2 - Prob. 42ECh. 1.2 - Prob. 43ECh. 1.2 - Prob. 44ECh. 1.2 - Prob. 45ECh. 1.2 - Prob. 46ECh. 1.2 - Prob. 47ECh. 1.2 - Prob. 48ECh. 1.2 - Prob. 49ECh. 1.2 - Prob. 50ECh. 1.2 - Prob. 51ECh. 1.2 - Prob. 52ECh. 1.2 - Prob. 53ECh. 1.2 - Prob. 54ECh. 1.2 - Prob. 55ECh. 1.2 - Prob. 56ECh. 1.2 - Prob. 57ECh. 1.2 - Prob. 58ECh. 1.3 - Prob. 1LCCh. 1.3 - Prob. 2LCCh. 1.3 - Prob. 1ECh. 1.3 - Prob. 2ECh. 1.3 - Prob. 3ECh. 1.3 - Prob. 4ECh. 1.3 - Prob. 5ECh. 1.3 - Prob. 6ECh. 1.3 - Prob. 7ECh. 1.3 - Prob. 8ECh. 1.3 - Prob. 9ECh. 1.3 - Prob. 10ECh. 1.3 - Prob. 11ECh. 1.3 - Prob. 12ECh. 1.3 - Prob. 13ECh. 1.3 - Prob. 14ECh. 1.3 - Prob. 15ECh. 1.3 - Prob. 16ECh. 1.3 - Prob. 17ECh. 1.3 - Prob. 18ECh. 1.3 - Prob. 19ECh. 1.3 - Prob. 20ECh. 1.3 - Prob. 21ECh. 1.3 - Prob. 22ECh. 1.3 - Prob. 23ECh. 1.3 - Prob. 24ECh. 1.3 - Prob. 25ECh. 1.3 - Prob. 26ECh. 1.3 - Prob. 27ECh. 1.3 - Prob. 28ECh. 1.3 - Prob. 29ECh. 1.3 - Prob. 30ECh. 1.3 - Prob. 31ECh. 1.3 - Prob. 32ECh. 1.3 - Prob. 33ECh. 1.3 - Prob. 34ECh. 1.3 - Prob. 35ECh. 1.3 - Prob. 36ECh. 1.3 - Prob. 37ECh. 1.3 - Prob. 38ECh. 1.3 - Prob. 39ECh. 1.3 - Prob. 40ECh. 1.3 - Prob. 41ECh. 1.3 - Prob. 42ECh. 1.3 - Prob. 43ECh. 1.3 - Prob. 44ECh. 1.3 - Prob. 45ECh. 1.3 - Prob. 46ECh. 1.3 - Prob. 47ECh. 1.3 - Prob. 48ECh. 1.3 - Prob. 49ECh. 1.3 - Prob. 50ECh. 1.3 - Prob. 51ECh. 1.3 - Prob. 52ECh. 1.3 - Prob. 53ECh. 1.3 - Prob. 54ECh. 1.3 - Prob. 55ECh. 1.3 - Prob. 56ECh. 1.3 - Prob. 57ECh. 1.3 - Prob. 58ECh. 1.3 - Prob. 59ECh. 1.3 - Prob. 60ECh. 1.3 - Prob. 61ECh. 1.3 - Prob. 62ECh. 1.3 - Prob. 63ECh. 1.3 - Prob. 64ECh. 1.3 - Prob. 65ECh. 1.3 - Prob. 66ECh. 1.3 - Prob. 67ECh. 1.3 - Prob. 68ECh. 1.3 - Prob. 69ECh. 1.3 - Prob. 70ECh. 1.3 - BUS If you have 348 packages of Halloween candy to...Ch. 1 - Prob. 1RECh. 1 - Prob. 2RECh. 1 - Write as decimal numbers.
(a)
(b)
(c)
Ch. 1 - Which of these decimal numbers is smaller: 0.83 or...Ch. 1 - Which of these decimal numbers is larger: 4.783 or...Ch. 1 - Two measurements of an object are recorded. If the...Ch. 1 - Write these decimal numbers in order of size from...Ch. 1 - Two parts are machined from the same stock. They...Ch. 1 - The decimal equivalent of is 0.875. The decimal...Ch. 1 - The population of Canada in 2017 was 36,469,872....Ch. 1 - Round to the indicated place.
Nearest hundred:...Ch. 1 - Round to the indicated place.
Nearest ten:...Ch. 1 - Round $83.48 to the nearest dollar.
Ch. 1 - Round $0.096 to the nearest cent.
Ch. 1 - Add.
8 + 5 + 3 + 6 + 2 + 4
7 + 4 + 3 + 2 + 5 + 4
Ch. 1 - Add.
6.2 + 32.7 + 46.82 + 0.29 + 4.237
86.3 +...Ch. 1 - An air conditioner uses 10.4 kW (kilowatts), a...Ch. 1 - A do-it-yourself project requires $57.32 for...Ch. 1 - Subtract: 28 − 13 − 5.
Ch. 1 - Subtract: 31 − 18 − 9.
Ch. 1 - Subtract.
(a) 21.34 − 16.73
(b) 15.934 −...Ch. 1 - Estimate by rounding to hundreds, then find the...Ch. 1 - For a moving sale, a family sold a sofa for $75...Ch. 1 - Subtract: 8 − 3.78.
Ch. 1 - Subtract: 143 − 78.2.
Ch. 1 - Prob. 26RECh. 1 - Find the length of A if D = 4.237 in., B = 1.861...Ch. 1 - Prob. 28RECh. 1 - Prob. 29RECh. 1 - Prob. 30RECh. 1 - Prob. 31RECh. 1 - Prob. 32RECh. 1 - Prob. 33RECh. 1 - Prob. 34RECh. 1 - Prob. 35RECh. 1 - Prob. 36RECh. 1 - Prob. 37RECh. 1 - Prob. 38RECh. 1 - Prob. 39RECh. 1 - Prob. 40RECh. 1 - A worker is offered a job that pays $365 per week....Ch. 1 - Prob. 42RECh. 1 - Prob. 43RECh. 1 - Prob. 44RECh. 1 - Prob. 45RECh. 1 - Prob. 46RECh. 1 - Prob. 47RECh. 1 - Prob. 48RECh. 1 - Prob. 49RECh. 1 - Prob. 50RECh. 1 - Prob. 51RECh. 1 - Prob. 52RECh. 1 - Prob. 53RECh. 1 - Prob. 54RECh. 1 - Prob. 55RECh. 1 - Prob. 56RECh. 1 - Prob. 57RECh. 1 - Prob. 58RECh. 1 - Prob. 59RECh. 1 - Prob. 60RECh. 1 - Prob. 61RECh. 1 - Prob. 62RECh. 1 - Prob. 63RECh. 1 - Prob. 64RECh. 1 - Prob. 65RECh. 1 - Prob. 66RECh. 1 - Prob. 67RECh. 1 - Prob. 68RECh. 1 - Prob. 69RECh. 1 - Prob. 70RECh. 1 - Prob. 71RECh. 1 - Prob. 72RECh. 1 - Prob. 73RECh. 1 - Prob. 74RECh. 1 - Prob. 75RECh. 1 - Prob. 76RECh. 1 - Prob. 77RECh. 1 - Prob. 78RECh. 1 - Prob. 79RECh. 1 - Prob. 80RECh. 1 - Prob. 81RECh. 1 - Prob. 82RECh. 1 - Prob. 83RECh. 1 - Prob. 84RECh. 1 - Prob. 85RECh. 1 - Prob. 86RECh. 1 - Prob. 87RECh. 1 - Prob. 88RECh. 1 - Prob. 89RECh. 1 - Prob. 90RECh. 1 - Prob. 91RECh. 1 - Prob. 92RECh. 1 - Prob. 93RECh. 1 - Prob. 94RECh. 1 - Prob. 95RECh. 1 - Prob. 96RECh. 1 - Prob. 97RECh. 1 - Prob. 98RECh. 1 - Prob. 99RECh. 1 - Prob. 100RECh. 1 - Prob. 101RECh. 1 - Prob. 102RECh. 1 - Prob. 103RECh. 1 - Prob. 104RECh. 1 - Prob. 105RECh. 1 - Prob. 106RECh. 1 - Prob. 107RECh. 1 - Prob. 108RECh. 1 - Prob. 109RECh. 1 - Prob. 110RECh. 1 - Prob. 111RECh. 1 - Prob. 112RECh. 1 - Prob. 113RECh. 1 - Prob. 114RECh. 1 - Prob. 115RECh. 1 - Prob. 116RECh. 1 - Prob. 117RECh. 1 - Prob. 118RECh. 1 - Prob. 119RECh. 1 - Prob. 120RECh. 1 - Prob. 121RECh. 1 - Prob. 122RECh. 1 - Prob. 123RECh. 1 - Prob. 124RECh. 1 - Prob. 125RECh. 1 - Prob. 1CACh. 1 - Prob. 2CACh. 1 - Prob. 3CACh. 1 - Prob. 4CACh. 1 - Prob. 5CACh. 1 - Prob. 6CACh. 1 - Prob. 7CACh. 1 - Find and explain the mistake, then rework each...Ch. 1 - Prob. 9CACh. 1 - Prob. 10CACh. 1 - Prob. 11CACh. 1 - Prob. 12CACh. 1 - Prob. 13CACh. 1 - Prob. 1PTCh. 1 - Prob. 2PTCh. 1 - Prob. 3PTCh. 1 - Prob. 4PTCh. 1 - Prob. 5PTCh. 1 - Prob. 6PTCh. 1 - Prob. 7PTCh. 1 - Prob. 8PTCh. 1 - Prob. 9PTCh. 1 - Prob. 10PTCh. 1 - Prob. 11PTCh. 1 - Prob. 12PTCh. 1 - Prob. 13PTCh. 1 - Prob. 14PTCh. 1 - Prob. 15PTCh. 1 - Prob. 16PTCh. 1 - Prob. 17PTCh. 1 - Prob. 18PTCh. 1 - Prob. 19PTCh. 1 - Prob. 20PTCh. 1 - Prob. 21PTCh. 1 - Prob. 22PTCh. 1 - Prob. 23PTCh. 1 - Prob. 24PTCh. 1 - Prob. 25PTCh. 1 - Prob. 26PTCh. 1 - Prob. 27PTCh. 1 - Prob. 28PTCh. 1 - Prob. 29PTCh. 1 - Prob. 30PT
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