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A large hospital wholesaler, as part of an assessment of workplace safety, gave a random sample of 64 of its warehouse employees a test (measured
A large hospital wholesaler, as part of an assessment of workplace safety, gave a random sample of 64 of its warehouse employees a test (measured on a 0 to 100 point scale) on safety procedures. For that sample of employees, the mean test score was 75 points, with a standard deviation of 15 points. Determine and interpret a 90% condence interval for the mean test score of all the company's warehouse employees. (Please keep at least four decimal places)
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