Question: Use the given information to find the minimum sample size required to estimate an unknown population mean . Remember to always round to the next

Use the given information to find the minimum sample size required to estimate an unknown population mean . Remember to always round to the next whole number.

Margin of error: $136, confidence level: 99%, = $584

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:

81.4 78.6 71.3 77.8 76.9 77.7

Determine a 90% confidence interval for the mean score for all students.

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