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A company that manufactures exercising machines wanted to know the proportion of large companies that provide...

A company that manufactures exercising machines wanted to know the proportion of large companies that provide on-site health club facilities. A random sample of 240 large companies showed that 96 of them provide these facilities on site. Construct a 90% confidence interval for the proportion of all large companies that provide on-site health club facilities. Express your answer using percentages.
Math   Statistics-And-Probability   
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