In a test of corrosion resistance, a sample of 62 Incoloy steel specimens were immersed in acidified brine for 4 hours, after wh
ich each specimen had developed a number of corrosive pits. The maximum pit depth was measured for each specimen. The mean depth was 850 μm with a standard deviation of 153 μm. The specification is that the population mean depth μ is less than 900 μm.
Find the P-value for testing H0 : μ ≥ 900 versus H1 : μ < 900.
Find the P-value for testing H0 : μ ≥ 900 versus H1 : μ < 900.
1 answer:
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Answer:
Rhian did better in the Math test.
Step-by-step explanation:
Given: Rhian scored out of
in a Math test. In the English test she scored
out of
.
To find: In which test did she do better?
Solution:
We have,
Rhian scored out of
in a Math test.
Rhian scored out of
in an English test.
So, first we need to find the percentage of the marks scored.
Percentage in the Math test .
Percentage in the English test .
Clearly, the percentage in the Math test is greater than the percentage in the English test.
So, Rhian did better in the Math test.
Answer:
hope it helps you
Step-by-step explanation:
https://mathsolver.microsoft.com/en/solve-problem/-4.2y%2B2.1%20%3E%20%20-2.52
