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Punchlinegirl
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Homework Statement
Measurements o the percentage of enrichment of 12 fuel rods used in a nuclear reactor were reported with a sample mean of 3.26. Test the hypothesis H_0: [tex]\mu[/tex]=2.95 versus H_1: [tex]\mu\neq[/tex]2.95, and draw appropriate conclusions. Use the p-value approach.
Homework Equations
The Attempt at a Solution
I honestly don't know where to begin since the variance is unknown. Can someone help me out?