5001Je
03.12.2019 •
Mathematics
Reconsider the percentage of titanium in an alloy used in aerospace castings from exercise 8-52. recall that s = 0.37 and n = 51. (a) test the hypothesis h0 : σ = 0.25 versus h1 : σ ≠ 0.25 using α = 0.05.
(a) state any necessary assumptions about the underlying distribution of the data.
(b) find the p-value.
(c) explain how you could answer the question in part (a) by constructing a 95% two-sided confidence interval for σ.
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Ответ:
26
2³ + 4(2 + x) for x = 10
- first do 4(2 + x) which is
8+4x
- Evaluate 2 cubed
You get 2 times 2 times 2.
That would get 8
Our expression is 8 + 8+x
x = 10
Substitute the values.
It is Now eight plus 8 plus ten
So when you Calculate eight plus 8 plus 10
You will get 26