luccianobiolan luccianobiolan
  • 16-11-2021
  • Mathematics
contestada

PLEASE HELP The mean life expectancy of a certain type of light bulb is 860 hours with a standard deviation of 22 hours.

What is the approximate standard deviation of the sampling distribution of the mean for all samples with n = 65?


0.34 h


0.75 h


2.73 h


2.95 h

Respuesta :

sincerecooper26 sincerecooper26
  • 16-11-2021
0.34 h is my take on the answers
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