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1. The Canadian commercial pilot written exam consists of 100 multiple choice questions. Last year, the...

1. The Canadian commercial pilot written exam consists of 100 multiple choice questions. Last year, the students enrolled in community college aviation course recorded a mean mark of 82% among 25 students.
a) Determine the margin of error at a 99% confidence level.
b) Determine the confidence interval for the exam marks.
Math   Statistics-And-Probability   
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