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

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

The principal randomly selected six students to take an aptitude test. Their scores were:

88.0 84.1 74.9 83.2 83.7 85.5

Determine a 92% confidence interval for the mean score for all students.

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