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A restaurant collects a survey from 50 respondents that ranks their service on a scale of 1 to 10. The average rating is 8.9. Assume

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A restaurant collects a survey from 50 respondents that ranks their service on a scale of 1 to 10. The average rating is 8.9. Assume a populat standard deviation of 1 unit. What is the 95% confidence interval? 17.51.10.001 O 1691.11261 18.62.9.101 18.55.2.25)

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