She sampled 40 patients and found the sample mean cost for


The Medical Rehabilitation Education Foundation found that average cost for stroke rehabilitation was $16411. An administrator at Pine Valley Rehab Center thinks that the average cost is lower at her facility. She sampled 40 patients and found the sample mean cost for rehab was $15706 with a sample standard deviation of $2016. Find the p-value for this test correct to four decimal places.

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