[Solution Library] A random sample of 88 light bulbs had a mean life of x̄ = 517 hours, Assume that σ = 39
Question: A random sample of 88 light bulbs had a mean life of \(\bar{x}\) = 517 hours, Assume that σ = 39 hours.
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Non-Parametric Statistics, or What to Do When the Assumptions for a Parametric Test Fail - MathCracker.com