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The sales manager for a hardware wholesaler finds that 229 of the previous 500 calls to hardware store owners resulted in new product placements....

The sales manager for a hardware wholesaler finds that 229 of the previous 500 calls to hardware store owners resulted in new product placements. Assume these 500 calls represent a random sample.
Find a 95% confidence interval for the long-run proportion of new product placements?
What level of confidence is associated with an interval of .400513 to .515487 for the long run proportion of new product placements?

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Statistics and Probability-8207707.doc

The sales manager for a hardware wholesaler finds that 229 of the previous 500 calls to hardware store owners resulted in new product placements. Assume these 500 calls represent a random sample....

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