Question

In: Statistics and Probability

4) You measure the concentration of perchlorate (a byproduct of fireworks) in several water samples taken...

4) You measure the concentration of perchlorate (a byproduct of fireworks) in several water samples taken from Lake Lanier 24 hours after the 4th of July holiday and get the following results: 8.6, 8.4, 5.7, 6.6, 9.2, 3.1, and 7.2 ppb. The regulatory limit for perchlorate is 6.0 ppb in water.

  1. Report the mean, standard deviation, relative standard deviation, and the 95% confidence interval for the perchlorate concentration. Are your measurements accurate and/or precise? Show your work
  2. Can you reject any of the values as an outlier? Show your work

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Expert Solution

orchestra answered 2 years ago
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