A geologist examines 1414 geological samples for mercury concentration. The mean mercury concentration for the sample data is 0.4660.466 cc/cubic meter with a standard deviation of 0.04530.0453. Determine the 90%90% 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.
A geologist examines 1414 geological samples for mercury concentration. The mean mercury concentration for the sample data is 0.4660.466 cc/cubic meter with a standard deviation of 0.04530.0453. Determine the 90%90% 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.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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A geologist examines 1414 geological samples for mercury concentration. The
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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