(Answered) Estimate the average satisfaction score

Statistics

A physician with a practice is currently serving 280 patients. The physician would like to administer a survey to his patients to measure their satisfaction level with his practice. A random sample of 22 patients had an average satisfaction score of 8.3 on a scale of 1-10. The sample standard deviation was 1.2.

a) Construct a 99% confidence interval to estimate the average satisfaction score for the physician's practice.

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