Scientists gather 18 different soil samples from a region to test for ground toxins in the water supply. The amount of toxins present in ppm (parts per million) are given in the data below. Find the...

Scientists gather 18 different soil samples from a region to test for ground toxins in the water supply. The amount of toxins present in ppm (parts per million) are given in the data below. Find the 99% confidence interval for the population mean amount of ground toxins. You may assume the population is normally distributed.



Round your answers to one decimal place.

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