Mathematics, 06.05.2021 19:30 kaylienguyen

A researcher examines 8 sedimentary samples for nitrate concentration. The mean nitrate concentration for the sample data is 0.688 cc/cubic meter with a standard deviation of 0.0701. Determine the 95% confidence interval for the population mean nitrate concentration. Assume the population is approximately normal. Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

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A researcher examines 8 sedimentary samples for nitrate concentration. The mean nitrate concentratio...

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