A certain colege has 490 of the 584 freshman return as, Ask an Expert

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A certain colege has 490 of the 584 freshman return as sophomores. Does this college have a right to brag that it has an unusually high retention rate?

No, because their retention rate is not more than 3 standard deviations above the expected rate of 74%

Yes, because their retention rate is not more than 3 standard deviations above the expected rate of 74%

No, because their retention rate is over 5 standard deviations above the expected rate of 74%

Yes, because their retention rate is over 5 standard deviations above the expected rate of 74%

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