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← 40-07 Confidence_Interval_Solution

40-07 Confidence_Interval_Solution

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Showing Revision 2 created 11/02/2015 by Udacity Robot.

  1. The answer is 0.72.
  2. The way we get there is to take the variance and divide it by the square root of n--83.
  3. Then factor in the magic number 1.96,
  4. which is the two-sided 95% confidence interval number for the normal distribution.
  5. That gives us 0.72.