Question
In: Mechanical Engineering
2. Two different hardening processes, (1) saltwater quenching and (2) oil quenching, are used on samples...
2. Two different hardening processes, (1) saltwater quenching and (2) oil quenching, are used on samples of a particular type of metal alloy. The results are shown in the table below. Assume that hardness is normally distributed. Test whether the variances are statistically different at 90% confidence. (10 pts)
|
Saltwater Quench |
Oil Quench |
|
145 |
154 |
|
150 |
152 |
|
153 |
149 |
|
148 |
157 |
|
141 |
142 |
|
152 |
148 |
|
146 |
160 |
|
154 |
154 |
|
153 |
|
|
145 |
Solutions
samet mamat answered 3 years agoRelated Solutions
Ringsmith Company is considering two different processes to make its product—process 1 and process 2. Process...
Ringsmith Company is considering two different processes to make
its product—process 1 and process 2. Process 1 requires Ringsmith
to manufacture subcomponents of the product in-house. As a result,
materials are less expensive, but fixed overhead is higher. Process
2 involves purchasing all subcomponents from outside suppliers. The
direct materials costs are higher, but fixed factory overhead is
considerably lower. Relevant data for a sales level of 25,000 units
follow:
Process 1
Process 2
Sales
$6,600,000
...
1. List and explain the two different approaches used to measure GDP. 2. Explain...
1. List and explain the two
different approaches used to measure GDP.
2. Explain why GDP figures
do not necessarily measure happiness or well-being.
3. Given that GDP is a
measure of what is produced in a country, explain how the
expenditure approach can measure GDP. How are items produced, but
not yet sold, accounted for in the expenditure approach?
a) Assume that you have two AISI 1045 cylindrical samples with two different diameters: one 1 in. thick and the other 2 in. thick.
a) Assume that you have two AISI 1045 cylindrical samples with two different diameters: one 1 in. thick and the other 2 in. thick. You astenitize and quench both samples in water. Then you cut a section and measure the hardness at the center of each sample. Would you expect to get the same results? Explain your answer.
b) Assume that you have two cylindrical steel samples with 1 in. diameter, one made out of AISI 1045 and another...
Compare and contrast the two (2) different consolidation processes of serial and single consolidation techniques when...
Compare and contrast the two (2) different consolidation
processes of serial and single consolidation techniques when
indirect ownership interests exist.
Question from taxation law subject
Compare and contrast the two (2) different consolidation processes of serial and single consolidation techniques when...
Compare and contrast the two (2) different consolidation
processes of serial and single consolidation techniques when
indirect ownership interests exist.
EXPLAIN IT WITH REFERENCES
Compare and contrast the two (2) different consolidation processes of serial and single consolidation techniques when...
Compare and contrast the two (2) different consolidation
processes of serial and single consolidation techniques when
indirect ownership interests exist. (in your own words)
How does interphase precipitation work for alloy hardening? Name two characterisation techniques that could be used...
How does interphase precipitation work for alloy hardening?
Name two characterisation techniques that could be used to image
interphase precipitation.
Define the following questions 1. Carburisation is a heat treatment used for case hardening steels. Carbon...
Define the following questions
1. Carburisation is a heat treatment used for case hardening
steels. Carbon is trapped on steel surface by:
2. Concentration gradient refers to
3. Interstitial diffusion is generally faster than diffusion by
vacancy mode. This is because:
4 .Diffusion is the result of:
5 .As the temperature rises, the rate diffusion:
thank you
1) a) Which two processes can be used to stabilize the liquid from the initial separator?...
1)
a) Which two processes can be used to
stabilize the liquid from the initial separator?
b) How
do pressure and flow rate changes affect the design? Can we design
the facility based on the initial production condition?
c) List
the 6 process modules commonly used in the general scheme for gas
processing.
d) What are the three objectives of
the gas processing?
Two different simple random samples are drawn from two different populations. The first sample consists of...
Two different simple random samples are drawn from two different
populations. The first sample consists of 20 people with 9 having a
common attribute. The second sample consists of 2000 people with
1440 of them having the same common attribute. Compare the results
from a hypothesis test of p 1equalsp 2 (with a 0.01 significance
level) and a 99% confidence interval estimate of p 1minusp 2.
Identify the test statistic.
Identify the critical value(s).
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