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Givenchiie57391 Givenchiie57391
  • 31-05-2024
  • Mathematics
Answered

Officials at Bellevue University hope that changes they have made have improved the retention rate. Last year a sample of 2126 freshmen showed that 1500 returned as sophomores. This year 1512 of 2020 freshmen returned as sophomores. Determine if there is sufficient evidence at the 0.05 level to say that the retention rate has improved.

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