Mathematics, 08.07.2021 07:50, mediocresquash

The following measurements (in picocuries per liter) were recorded by a set of argon gas detectors installed in a research facility: 381.3,394.8,396.1,380
Using these measurements, construct a 95% confidence interval for the mean level of argon gas present in the facility. Assume the population is approximately normal.

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The following measurements (in picocuries per liter) were recorded by a set of argon gas detectors i...