Stats Solutions

(See Solution) A principal at a school randomly selected six students to take an aptitude test. Their scores were: 77.1 84.1 83.5 83.7 84.1 73.5. Assume

Question: A principal at a school randomly selected six students to take an aptitude test. Their scores were: 77.1 84.1 83.5 83.7 84.1 73.5.

Assume that the population has a normal distribution. Determine a 90% confidence interval for the mean score of all students. Here you will need to compute the sample mean and sample standard deviation yourself before being able to write down the confidence interval.

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