Mathematics, 05.05.2020 18:37, ogiebert
A chemist examines 22 water samples for iron concentration. The mean iron concentration for the sample data is 0.409 cc/cubic meter with a standard deviation of 0.016. Determine the 99% confidence interval for the population mean iron 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 chemist examines 22 water samples for iron concentration. The mean iron concentration for the samp...
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