A computer repair service found that a random sample of 45


A computer repair service found that a random sample of 45 repair costs had a mean cost of $659. Assume that the population standard deviation is $125. Calculate the margin of error, E, for a 95% confidence interval for the population mean µ.

  • 48.1
  • 34.9
  • 30.6
  • 36.5

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Basic Statistics: A computer repair service found that a random sample of 45
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