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Mathematics, 23.07.2019 15:30 shmote12
Arestaurant owner wants to determine the effectiveness of his servers. the owner conducted a survey by asking 30 customers about the servers' effectiveness, on a day when the restaurant had 450 customers. the owner found that 65% of those surveyed were satisfied with the service offered. assuming a 95% confidence level, which of the following statements holds true? a. as the sample size is appropriately large, the margin of error is ±0.171. b. as the sample size is appropriately large, the margin of error is ±0.203. c. as the sample size is too small, the margin of error cannot be trusted. d. as the sample size is too small, the margin of error is ±0.203.
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