In: Statistics and Probability
Find confidence interval for population mean.
The principal randomly selected six students to take an aptitude test. Their scores were:
71.5 80.4 77.1 86.5 82.1 72.3
Determine a 90% confidence interval for the mean score for all students. Round to 2 decimal places.
73.52 < μ < 83.11 |
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73.42 < μ < 83.21 |
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83.21 < μ < 73.42 |
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83.11 < μ < 73.52 |