# If you want to test the claim that the MTBF of a particular piece of equipment has increased from 1230 operating hours, what would your null hypothesis be?

If you want to test the claim that the MTBF of a particular piece of equipment has increased from 1230 operating hours, what would your null hypothesis be?

**H0: µ ≤ 1230**- H0: µ > 1230
- H0: µ ≥ 1230
- H0: µ = 1230

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