Proportion of fifth graders with proficient math test scores in 10 elementary schools.

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A data frame with 10 observations on the following 3 variables.

`school`

A factor with 10 levels giving the ID of the school.

`enrolled`

A numeric vector giving the number of students taking part in the math test.

`proficient`

A numeric vector giving the number of students with proficient math test scores.

A study compared math achievements of students from 10 elementary schools in a U.S. district; 6 of them were conventional neighborhood schools (`N1`

–`N6`

) and 4 alternative schools (`A1`

–`A4`

). 563 fifth graders took standardized math tests, and each school's proportion of students who scored proficient was recorded.

Nelson, P. R., Wludyka, P. S., Copeland, K. A. F. (2005) The Analysis of Means: A Graphical Method for Comparing Means, Rates, and Proportions. Society for Industrial and Applied Mathematics (SIAM), Philadelphia, PA, and American Statistical Association (ASA), Alexandria, VA, pp. 42–43.

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