A professor 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 127 students, 75 said they bought a hard copy of the book, 28 said they printed it out from the web, and 24 said they read it online. (Use a significance level of 0.05.)