In: Statistics and Probability
The amount of lateral expansion (mils) was determined for a sample of n = 8 pulsed-power gas metal arc welds used in LNG ship containment tanks. The resulting sample standard deviation was s = 2.82 mils. Assuming normality, derive a 95% CI for σ2 and for σ. (Round your answers to two decimal places.)
CI for σ2 |
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CI for σ |
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