(Choose 1 answer)
Let t0.05.5 2.02
The principal randomly selected six students to take an aptitude test.Their scores were:
77.9 89.1 80.7
78.6 74.4 82.0
Determine a 90%confidence interval for the mean score for all students.Assume that the population has a normal distribution.
A. None of the other choices is correct
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the exam.
