itzmemaisa122 itzmemaisa122
  • 11-10-2022
  • Mathematics
contestada

The company would like to set the warranty for 540 days, and still replace no more than
1% of the calculators sold. Increasing the average life of the calculators is too expensive,
but they think they reduce the standard deviation of the lifespans. What standard deviation
of lifespans would be needed to make this happen?

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