QUESTION 6 Suppose that we are considering ACT scores. We wish to test the hypothesis that on average public school students score greater than or equal to 19 against the hypothesis that the average public school student scores less than 19. Which of the following is the null hypothesis? not enough information O public school students score less than 19 O public school students score greater than or equal to 19 O neither of these QUESTION 7 Suppose that we are considering ACT scores. We wish to test the hypothesis that on average public school students score greater than or equal to 19 against the hypothesis that the average public school student scores less than 19. Which of the following best describes the test? lower tail test O upper tail test two tail test none of these O O O O

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