Aprofessor using an open source introductory statistics book

predicts that 60% of the students will purchase a hard copy of the book, 25% will print it out from

the web, and 15% will read it online. at the end of the semester he asks his students to complete

a survey where they indicate what format of the book they used. of the 126 students, 71 said

they bought a hard copy of the book, 30 said they printed it out from the web, and 25 said they

(a) state the hypotheses for testing if the professor