A pump for removing water from flooded mines is alleged to have a…

Question A pump for removing water from flooded mines is alleged to have a… A pump for removing water from flooded mines is alleged to have a mean extraction rate of at least 5000 gallons per hour.  A mining consortium tested a random sample of 16 pumps of the new model.  For that sample, the mean extraction rate was 4890 gallons per hour with a standard deviation of 120 gallons per hour.  Does this sample data provide evidence that the mean extraction rate for this new model of pump is less than 5000 gallons per hour?  Use the p-value approach to hypothesis testing to address this question.  Assume that the extraction rate for this new model of pump is approximately normally distributed.  Math Statistics and Probability DSS 210 Share QuestionEmailCopy link Comments (0)

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