Mathematics, 22.11.2021 14:00 brde1838

o ahead with a purchase arrangement unless it can be conclusively demonstrated that the true average lifetime is smaller than what is advertised. A random sample of 50 bulbs was selected, the lifetime of each bulb determined, and the appropriate hypotheses were tested using Minitab, resulting in the accompanying output:

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o ahead with a purchase arrangement unless it can be conclusively demonstrated that the true average...