Confidence interval-2- - Statistics Confidence Interval by ClassOf1

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									              Sub: Statistics                                                               Topic: Confidence Interval



              Question:
              Finding 98% confidence interval for the given data.

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              Create a 95% confidence interval for the given data.

              The county health department has concerns about the chlorine level of 0.4% mg/mL at a local
              water park increasing to unsafe level. The water department tests the hypothesis that the local
              water park’s chlorine proportions have remained the same. An independent agency, hired by
              the city, ran a test on a random sample size of 1000 and found the chlorine level at 0.5%
              mg/mL. Create a 95% confidence in
								
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