The percentage of titanium in an alloy used in aerospace castings is measured as shown below. 22.2 24.7 20.9 26 27 24.8 26.5 23.8 25.6 23.9 Choose from the equations below what can be used to construct a 99% lower confidence bound for σ2 Select all that apply.
The percentage of titanium in an alloy used in aerospace castings is measured as shown below. 22.2 24.7 20.9 26 27 24.8 26.5 23.8 25.6 23.9 Choose from the equations below what can be used to construct a 99% lower confidence bound for σ2 Select all that apply.
College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.CR: Chapter Review
Problem 55E: Verify the following formula for n=1,n=2,n=3, and n=4: 13+23+33++n3=n2n+124
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The percentage of titanium in an alloy used in aerospace castings is measured as shown below.
| 22.2 | 24.7 | 20.9 | 26 | 27 |
| 24.8 | 26.5 | 23.8 | 25.6 | 23.9 |
Choose from the equations below what can be used to construct a 99% lower confidence bound for σ2
Select all that apply.
Transcribed Image Text:(n- 1)s?
Xổ.9,9
(n- 1)s?
X1-a,n-1
O (n- 1)s?
Xo.01,9
O 1.52 so?
O (n- 1)s?
Xa,n-1
O (n- 1)s?
Xổ.01,10
O (9)(1.913)2
21.67
O (9)(1.913)2
23.21
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