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A survey of seniors at Algieres High School found that had been accepted to a four-year university. A computer simulation was conducted and the proportions sorted to determine the sample-to-sample variability:

Proportion of students accepted to a four-year university (sorted).
Simulation mean .


  1. Use the technique of problem 11-27 to find the upper and lower bounds of the sample-to-sample variability.

    The simulation was run times.
    Which results represent the th and th percentiles?

  2. Predict the proportion of the seniors at Algieres High that have been accepted to four-year universities and give the margin of error.

    The mean (center) is .
    Acceptance rates can be expected to be in the range of your answers to part (a).
    Express this as .