10 proper- ties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetra- tion (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.7 and a sample standard deviation of s = 4.8. The conduits were manufac- tured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demon- strated conclusively that the specification has not been met. What would you conclude?
10 proper- ties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetra- tion (in mils) for each specimen is then measured, yielding a sample average penetration of x = 52.7 and a sample standard deviation of s = 4.8. The conduits were manufac- tured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demon- strated conclusively that the specification has not been met. What would you conclude?
MATLAB: An Introduction with Applications
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please show full solution and p value diagram. Thank you

Transcribed Image Text:22. To obtain information on the corrosion-resistance proper-
ties of a certain type of steel conduit, 45 specimens are
buried in soil for a 2-year period. The maximum penetra-
tion (in mils) for each specimen is then measured, yielding
a sample average penetration of x = 52.7 and a sample
standard deviation of s = 4.8. The conduits were manufac-
tured with the specification that true average penetration be
at most 50 mils. They will be used unless it can be demon-
strated conclusively that the specification has not been met.
What would you conclude?
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