Math  /  Data & Statistics

QuestionA quality control inspector finds that a sample of 60 manufactured parts has an average length of 12.5 cm . The population standard deviation of part length is 1.2 cm . Determine a 99%99 \% confidence interval for the population mean length of the parts.

Studdy Solution
We are 99% confident that the true population mean length of the manufactured parts is between **12.101 cm** and **12.899 cm**.

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