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Use the given degree of confidence and sample data to construct a confidence interval for the population mean j. Assume that the population has a

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Use the given degree of confidence and sample data to construct a confidence interval for the population mean j. Assume that the population has a normal distribution The principal randomly selected six students to take an aptitude test. Their scores were: 72.1 75.0 77.4 75.187.5 78.0 Determine a 90% confidence interval for the mean score for all students. 81.89

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