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Check My Work (2 remaining) A simple random sample of 10 items resulted in a sample mean of 15. The population standard deviation is o

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Check My Work (2 remaining) A simple random sample of 10 items resulted in a sample mean of 15. The population standard deviation is o = 7. Round your answers to two decimal places. b. At 95% confidence, what is the margin of error? a. What is the standard error of the mean, of? O O O O O O

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