Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Textbook Question
Chapter 13, Problem 18A
The block in Figure 13-7 has a threaded hole with a 0.0625-inch pitch. Determine the number of threads for the given depth to 1 decimal place. All dimensions are in inches.
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In Gallup's Annual Consumption Habits Poll, telephone interviews were conducted for a
random sample of 1014 adults aged 18 and over. One of the questions was, "How many
cups of coffee, if any, do you drink on an average day?" The following table shows the
results obtained (Gallup website, August 6, 2012).
Number of Cups
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Number of
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365
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Ten major college football bowl games were played in January 2010, with the University
of Alabama beating the University of Texas 37 to 21 to become the national champion
of college football. The results of the 10 bowl games follow (USA Today, January 8, 2010).
Bowl Game
Score
Outback
Gator
Auburn 38 Northwestern 35
Florida State 33 West Virginia 21
Capital One
Penn State 19 LSU 17
Rose
Ohio State 26 Oregon 17
Florida 51 Cincinnati 24
Sugar
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Fiesta
Mississippi State 21 Oklahoma State 7
Texas Tech 41 Michigan State 31
Boise State 17 TCU 10
Orange
Iowa 24 Georgia Tech 14
Championship
Alabama 37 Texas 21
Predicted
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Actual
Point Margin
5
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12
3
-2
14
3
9
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10
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The predicted winning point margin was based on Las Vegas betting odds approximately
one week before the bowl games were played. For example, Auburn was predicted to beat
Northwestern in the Outback Bowl by five points. The actual winning point margin for Au-
burn was three points. A…
In 2007 the New York Times reported that the median annual household income in the United
States was $55,500 (New York Times website, August, 21, 2013). Answer the following
questions based on the following sample of 14 household incomes for 2013 ($1000s).
49.4
52.2
52.4
53.4
51.3
52.1
48.7
64.5
51.6
46.5
52.9
52.5
52.1
51.2
a.
What is the median household income for the sample data for 2013?
b. Based on the sample data, estimate the percentage change in the median household
income from 2007 to 2013.
c. Compute the first and third quartiles.
Chapter 13 Solutions
Mathematics For Machine Technology
Ch. 13 - Prob. 1ACh. 13 - Express the common fraction 44125 as a decimal...Ch. 13 - Prob. 3ACh. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Use Figure 132 to answer Exercises 4 through 6....Ch. 13 - Prob. 7ACh. 13 - Divide the numbers in Exercises 7 through 9....Ch. 13 - Divide the numbers in Exercises 7 through 9....Ch. 13 - As indicated in Figure 133, rack sizes are given...
Ch. 13 - Four sets of equally spaced holes are shown in the...Ch. 13 - A cross-sectional view of a bevel gear is shown in...Ch. 13 - How many complete bushings each 14.60 millimeters...Ch. 13 - A shaft is being cut in a lathe. The tool feeds...Ch. 13 - How much stock per stroke is removed by the wheel...Ch. 13 - An automatic screw machine is capable of producing...Ch. 13 - The bolt in Figure 136 has 7.7 threads. Determine...Ch. 13 - The block in Figure 13-7 has a threaded hole with...Ch. 13 - The length of a side of a square equals the...Ch. 13 - All sections of the block in Figure 13-9 are equal...
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