Question
In: Civil Engineering
In a quality control test of a highway project, the following data was collected as shown...
In a quality control test of a highway project, the following data was collected as shown below. Bulk specific gravity of the compacted mix is 2.30, Bulk Specific gravity of aggregate=2.75, The percentage of bitumen absorption is 0.45%, The percentage of binder by mass=5.5%,Bitumen Specific Gravity=1.05, answer the following questions: What is the percentage of Air voids in the compacted mix?
Aggregate effective specific gravity?
Solutions
Ally Wells answered 10 months agoRelated Solutions
A quality control manager for Hewlett Packard has collected the following data on the quality status...
A quality control manager for Hewlett Packard has collected the
following data on the quality status of hard drives by supplier.
She inspected a total of 700 hard drives. For a hard drive selected
at random, answer the questions that follow the table.
Hard Drive Status
Supplier
Working
Defective
TOTAL
Company A
123
10
133
Company B
181
15
196
Company C
51
5
56
Company D
303
12
315
TOTAL
658
42
For a hard drive selected at...
evelop a plan for performing quality assurance and quality control on this project. Identify the project...
evelop a plan for performing quality assurance and quality
control on this project. Identify the project deliverables.
Determine the quality criteria for each project deliverable.
Identify the quality control tasks needed to control quality.
Determine quality assurance activities required to assure quality.
Prepare an action plan: Assign the person responsible for each
quality control and assurance activity, and time frame to complete
the activity.
Two quality control technicians measured the surface finish of a metal part, obtaining the data shown....
Two quality control technicians measured the surface finish of a
metal part, obtaining the data shown. Assume that the measurements
are normally distributed. Use Minitab© for all tests and
calculations.
Tech 1
1.45
1.37
1.21
1.54
1.48
1.29
1.34
*
Tech 2
1.54
1.41
1.56
1.37
1.20
1.31
1.27
1.35
a) Does the normality assumption seem reasonable for the data?
Are the variances equal? How do you know?
b) The supervisor asks you to test the hypothesis that the
difference...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data...
The following are quality control data for a manufacturing
process at Kensport Chemical Company. The data show the temperature
in degrees centigrade at five points in time during a manufacturing
cycle.
Sample
x
R
1
95.72
1.0
2
95.24
0.9
3
95.18
0.9
4
95.42
0.4
5
95.46
0.5
6
95.32
1.1
7
95.40
1.0
8
95.44
0.3
9
95.08
0.2
10
95.50
0.6
11
95.80
0.6
12
95.22
0.2
13
95.60
1.3
14
95.22
0.5
15
95.04
0.8
16...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data...
The following are quality control data for a manufacturing
process at Kensport Chemical Company. The data show the temperature
in degrees centigrade at five points in time during a manufacturing
cycle.
Sample
x
R
1
95.72
1.0
2
95.24
0.9
3
95.18
0.9
4
95.46
0.4
5
95.46
0.5
6
95.32
1.1
7
95.40
0.9
8
95.44
0.3
9
95.08
0.2
10
95.50
0.6
11
95.80
0.6
12
95.22
0.2
13
95.56
1.3
14
95.22
0.6
15
95.04
0.8
16...
The following are quality control data for a manufacturing process at Kensport Chemical Company. The data...
The following are quality control data for a manufacturing
process at Kensport Chemical Company. The data show the temperature
in degrees centigrade at five points in time during a manufacturing
cycle.
Sample
x
R
1
95.72
1.0
2
95.24
0.9
3
95.18
0.7
4
95.42
0.4
5
95.46
0.5
6
95.32
1.1
7
95.40
0.9
8
95.44
0.3
9
95.08
0.2
10
95.50
0.6
11
95.80
0.6
12
95.22
0.2
13
95.60
1.3
14
95.22
0.4
15
95.04
0.8
16...
The following are quality control data for a manufacturing process at Bensdork Chemical Company. The data...
The following are quality control data for a manufacturing
process at Bensdork Chemical Company. The data show the temperature
in degrees centigrade at five points in time during a manufacturing
cycle.
Sample
x
R
1
95.72
1.0
2
95.24
0.9
3
95.18
0.8
4
95.46
0.4
5
95.46
0.5
6
95.32
1.1
7
95.40
0.8
8
95.44
0.3
9
95.08
0.2
10
95.50
0.6
11
95.80
0.6
12
95.22
0.2
13
95.60
1.3
14
95.22
0.4
15
95.04
0.8
16...
The following are quality control data for a manufacturing process at Kensprt Chemical Company. The data...
The following are quality control data for a manufacturing
process at Kensprt Chemical Company. The data show the temperature
in degrees centigrade at five points in time during the
manufacturing cycle. The company is interested in using quality
control charts in monitoring the temperature of its manufacturing
cycle. Construct an X bar and R chart and indicate what its tells
you about the process.
Sample X
bar R
1
95.72 1.0
2
95.24 .9
3
95.38 .8...
You are asked to analyze the below speed data collected on a highway on different days...
You are asked to analyze the below speed data collected on a
highway on different days of the week for similarity. Use ANOVA
(analysis of variance) to support your conclusion by performing the
following tasks:
Sample 1 (mph)
Sample 2 (mph)
Sample 3 (mph)
50
45
55
55
50
60
50
55
50
50
60
45
60
40
40
State your null hypothesis (H0) and alternative hypothesis
(H1)
State your assumed level of significance (αα)
Calculate mean for sample 1...
You are asked to analyze the below speed data collected on a highway on different days...
You are asked to analyze the below speed data collected on a
highway on different days of the week for similarity. Use ANOVA
(analysis of variance) to support your conclusion by performing the
following tasks:
Sample 1 (mph)
Sample 2 (mph)
Sample 3 (mph)
50
45
55
55
50
60
50
55
50
50
60
45
60
40
40
State your null hypothesis (H0) and alternative hypothesis
(H1)
State your assumed level of significance (αα)
Calculate mean for sample 1...
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