A local public school encourages, but does not require, students to wear uniforms. The principal of the

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A local public school encourages, but does not require, students to wear uniforms. The principal of the school compares the grade point averages of students at this school who wear uniforms with the GPAs of those who do not wear uniforms to determine whether those wearing uniforms tend to have higher GPAs.

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Essential Statistics

ISBN: 9780134134406

2nd Edition

Authors: Robert Gould, Colleen N. Ryan, Rebecca Wong

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