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Assume you are interested in the thermal conductivity for a specific iron at 100°F and 550W....

Assume you are interested in the thermal conductivity for a specific iron at 100°F and 550W. You collect 45 samples and calculate the mean, x = 41.924 Btu/hr-ft-°F. Assume you know the population standard deviation for this specific iron, and conditions is σ = 0.30 Btu/hr-ft-°F. Construct a 95% confidence level around the true population mean for thermal conductivity.

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