The University of Fountain Lakes has just placed an advertizement in various sch

Question

The University of Fountain Lakes has just placed an advertizement in various school magazines, looking to recruit new students. At one stage in the ad the following claim is made:

'A whopping 85% of our graduate students go on to achieve professional employment within 6 months of graduation!'

There is a footnote at the bottom of the ad, which qualifies this boast:

'Note: a 95% confidence interval was constructed and we found that the proportion of students going on to professional employment within 6 months of graduation is within 0.01 of 0.85'

Four students see this advertizement, including the footnote, and interpret the ad in different ways:

Alex:'They are 95% confident that 85% of students will go on to achieve professional employment within 6 months.'

Barbara: 'They know that 85% of students will go on to achieve professional employment within 6 months.'

Chris: 'They know that somewhere between 84% and 86% of students will go on to achieve professional employment within 6 months.'

Donna: 'They are 95% confident that somewhere between 84% and 86% of students will go on to achieve professional employment within 6 months.'

The student that has the most correct interpretation is:

Explanation / Answer

The student that has the most correct interpretation is: Donna

Donna: 'They are 95% confident that somewhere between 84% and 86% of students will go on to achieve professional employment within 6 months.'

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