Question
In: Statistics and Probability
Problem 3. To obtain information on the corrosion-resistance properties of a certain type of steel conduit,...
Problem 3. To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 25 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding the following values
50.2 50.7 50.5 51.5 48.9
46.6 48.3 50.2 50.5 51.6
52.9 53.3 53.4 48.5 53.4
52.7 52.1 51.3 49.9 50.2
51.8 51.9 51.0 52.2 51.8
The conduits were manufactured with the specification that true average penetration be at most 50 mils. What would you conclude?
Solutions
orchestra answered 1 year agoRelated Solutions
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.5 and a sample standard deviation of s = 4.3. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 25 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 25 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x ̄ = 52.7. According to the normal probability plot, we can
observe a linear pattern using the sample we have. The conduits
were manufactured with the specification that true average
penetration be at most 50 mils. They will...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x = 52.5 and a sample standard deviation of s =
4.7. The conduits were manufactured with the specification that
true average penetration be at most 50 mils. They will be used
unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x 5 52.7 and a sample standard deviation of s 5 4.8. The conduits
were manufactured with the specification that true average
penetration be at most 50 mils. They will be used unless it can be
demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens...
To obtain information on the corrosion-resistance properties of
a certain type of steel conduit, 45 specimens are buried in soil
for a 2-year period. The maximum penetration (in mils) for each
specimen is then measured, yielding a sample average penetration of
x = 52.4 and a sample standard deviation of s =
4.5. The conduits were manufactured with the specification that
true average penetration be at most 50 mils. They will be used
unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period.
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x̅ = 52.8 and a sample standard deviation of s = 4.9. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period.
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 53.2 and a sample standard deviation of s = 4.8. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that...
Which type of corrosion cell causes iron or steel to corrode (and create rust) when a...
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