(a) A tutoring company would like to understand if most students tend to improve their grades (or not) after they use their services. They sample 200 of the students who used their service in the past year and ask them if their grades have improved or declined from the previous year. In symbols, the hypotheses are: Ho: p = 0.50 На: р 2 0.51 Но: р %3D 100 На: р > 101 Но: р 3D 100 На: р > 100 Но: р 3D 0.50 На: р > 0.50

(a) A tutoring company would like to understand if most students tend to improve their grades (or not) after they use their services. They sample 200 of the students who used their service in the past year and ask them if their grades have improved or declined from the previous year. In symbols, the hypotheses are: Ho: p = 0.50 На: р 2 0.51 Но: р %3D 100 На: р > 101 Но: р 3D 100 На: р > 100 Но: р 3D 0.50 На: р > 0.50

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Description: (a) A tutoring company would like to understand if moststudents tend to improve their grades (or not) after theyuse their services. They sample 200 of the students whoused their service in the past year and ask them if theirgrades have improved or d

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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