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A geologist examines 16 seawater samples for mercury concentration. The mean mercury concentration for the sample...

A geologist examines 16 seawater samples for mercury concentration. The mean mercury concentration for the sample data is 0.055 cc/cubic meter with a standard deviation of 0.0588. Determine the 95%

confidence interval for the population mean mercury 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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Answer #1

2ndam vaiable X denotes menuy concentaation h 16 0.055 cc/cubic O.05 88 cclcubic Let Given, S 95 contidlence intemal do popul2 15 Confidence intemval fee populahon meah t12.131) S O.055 t (2.13D (0.0588) Vn O.055O. 0313 95% confidlance intemal fot p

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