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MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
5th Edition
ISBN: 9781305581159
Author: Nicholas J. Garber; Lester A. Hoel
Publisher: Cengage Learning US
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Chapter 7, Problem 14P
To determine
The width of the turning roadway for one lane, one-way operation with provision for passing a stalled vehicle.
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Six samples of each of four types of cereal grain grown in a certain region were analyzed to determine thiamin content, resulting in the following data (μg/g).
Wheat 5.2 4.4 6.0 6.0 6.7 5.7
Barley 6.4 8.0 6.2 7.6
5.9 5.7
Maize
Oats
5.7 4.6 6.4 4.8
6.1 5.3
8.2 6.1 7.9 7.1 5.6 7.1
USE SALT
Does this data suggest that at least two of the grains differ with respect to true average thiamin content? Use a level α = 0.05 test.
State the appropriate hypotheses.
O Ho: H1 H2 H3 #44
H₁: all four μ's are equal
Ho M1 M2 M3 = μ4
H: all four μ's are unequal
Ho: M1 M2 M3 M4
Ha
: at least two us are equal
O Ho H1 H2 =μ3=4
Ha at least two μ's are unequal
Compute the test statistic value. (Round your answer to two decimal places.)
f =
What can be said about the P-value for the test?
P-value > 0.100
0.050 P-value < 0.100
0.010 < P-value < 0.050
0.001 < P-value < 0.010
P-value < 0.001
State the conclusion in the problem context.
◇ Reject Ho. There is significant evidence that at least two of the grains…
The Water Environment Federation (WEF) recommends that the linear flow-through velocity in a
wastewater clarifier should be less than to 0.020 m/s to prevent scour. Using ẞ = 0.06 for sticky particles
and a Darcy-Weisback friction factor of 0.03, estimate the specific gravity of a 200 μm diameter particle
that will be scoured at the recommended velocity. Express your answer in kg/m³ and round to the
nearest integer.
The following data was reported on total Fe for four types of iron formation (1 =
carbonate, 2 =
1: 21.0 28.1 27.8 27.0 28.5 25.2 25.3 27.1 20.5 31.1
2: 26.2 24.0 26.2 20.2 24.3 34.0 17.1 26.8 23.7 25.3
3: 30.3 34.0 27.5 29.4 28.2 26.2 29.9 29.5 30.0 36.5
4: 37.2 44.2 34.1 30.3 31.8 33.1 34.1 32.9 36.3 25.8
silicate, 3 = magnetite, 4 =
USE SALT
Carry out an analysis of variance F test at significance level 0.01. State the appropriate hypotheses.
O Ho H₁ =μ₂ = 3 = μ4
H: at least two μ's are unequal
#
O Ho: H1 H2 H3 H4
Ha: at least two μ's are equal
#
#
O Ho: H1 H2 H3 H4
Ha all four μ's are equal
O Ho H1 H2 H3 = 4
H: all four μ's are unequal
Summarize the results in an ANOVA table. (Round your answers two decimal places.)
Sum of Mean
Source
df
Squares Squares
f
Treatments
Error
Total
Give the test statistic. (Round your answer to two decimal places.)
f =
What can be said about the P-value for the test?
OP-value>0.100
0.050 < P-value < 0.100
0.010 < P-value < 0.050
0.001 < P-value < 0.010…
Chapter 7 Solutions
MindTap Engineering for Garber/Hoel's Traffic and Highway Engineering, 5th Edition, [Instant Access], 1 term (6 months)
Ch. 7 - Prob. 1PCh. 7 - Prob. 2PCh. 7 - Prob. 3PCh. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - Prob. 15PCh. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28P
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