Estimate the true mean amount

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Reference no: EM132201102

A federal inspector visited an oil refinery for a routine inspection. He used a 99% confidence interval to estimate the true mean amount of sulfur contained in the fuel oil made by the refinery. His confidence interval was (1.91, 2.29). Which of the following is the best way to report or interpret this confidence interval?

a) We are 99% confident that the true mean amount of sulfur in the fuel oil is between 1.91 and 2.29.

b) There is a 99% chance that the true mean amount of sulfur in the fuel oil is between 1.91 and 2.29.

c) 99% of the fuel oil has between 1.91 and 2.29 units of sulfur in it.

d) There is a 99% chance that the sample mean amount of sulfur in the fuel oil is between 1.91 and 2.29.

Reference no: EM132201102

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