Source: Washington Observer-Reporter 7. Reducing Errors in Grammar A composition teacher wishes to see whether a new grammar program will re- duce the number of grammatical errors her students make when writing a two-page essay. She randomly se- lects six students, and the data are shown. At a = 0.025, can it be concluded that the number of errors has been 12. reduced? Student 1. 4 Errors before 12 9 0 3. Errors after 9. 6. 1 3. 2 3
Source: Washington Observer-Reporter 7. Reducing Errors in Grammar A composition teacher wishes to see whether a new grammar program will re- duce the number of grammatical errors her students make when writing a two-page essay. She randomly se- lects six students, and the data are shown. At a = 0.025, can it be concluded that the number of errors has been 12. reduced? Student 1. 4 Errors before 12 9 0 3. Errors after 9. 6. 1 3. 2 3
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 1CA
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