We plan to poll 200 students enrolled in statistics at your college by distributing surveys during class. Which of the following hypotheses could be tested with the survey results? Mark each as valid (OK to use to test the hypothesis) or not valid (should not be used to test the hypothesis.)

Hint 1

The hypothesis that p = 0.60, where p is the proportion of students at your college who study the recommended “2 hours a week for each class unit.”

The hypothesis that p = 0.60, where p is the proportion of students at your college who visit a dentist at least once a year.

The hypothesis that p = 0.60, where p is the proportion of students at your college who are receiving some form of financial aid.

The hypothesis that p = 0.60, where p is the proportion of students at your college who spend more than $600 per semester on textbooks.