Confidence interval for the mean test score

Reference no: EM1319818

Question: A large hospital wholesaler, as part of an assessment of workplace safety, gave a random sample of 40 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 72 points, with a standard deviation of six points. Estimate and interpret a 95 percent confidence interval for the mean test score of all the company's warehouse employees.

Reference no: EM1319818

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