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There are 230 welders employed at the Weller Shipyards Corporation. A sample of 34 welders revealed...

There are 230 welders employed at the Weller Shipyards Corporation. A sample of 34 welders revealed that 17 had graduated from a registered welding course. Construct the 99% confidence interval for the proportion of all welders who graduated from a registered welding course. (Round the final answers to 3 decimal places.)

The confidence interval is between       and     .

Math   Statistics-And-Probability   
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Answer #1

The confidence interval is between 0.279 and 0.721.

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