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arod20061
23.10.2019 •
Mathematics
The following measurements (in picocuries per liter) were recorded by a set of xenon gas detectors installed in a laboratory facility:
817.4,814.5,831.5,850.5,811.6,832.4,792.7
using these measurements, construct a 98% confidence interval for the mean level of xenon gas present in the facility. assume the population is approximately normal.
step 1 of 4: calculate the sample mean for the given sample data. round your answer to two decimal place
step 2 of 4: calculate the sample standard deviation for the given sample data. round your answer to two decimal places.
step 3 of 4: find the critical value that should be used in constructing the confidence interval. round your answer to three decimal places.
step 4 of 4: construct the 98% confidence interval. round your answer to two decimal places.
lower endpoint:
upper endpoint:
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Ответ:
answer: /=(500)(15)(2)
step-by-step explanation: