A researcher believes that students will be better writers after they take a business writing course. To test this hypothesis, she gets a set of students to write a memo just before they take a business writing course. They then write another memo at the end of the course. She scores both memos on a 20-point scale (higher scores are better) and subtracts the earlier score from the later score. Test Statistics" After-Before Z 1.541 Asymp. Sig. (2-tailed) 0123 b. Based on positive ranks The output above is for the study with 14 individuals. The p-value (after any necessary adjustments) is 0 0.00615 0 0.0246 0 0.0123 QUESTION 23 A researcher believes that students will be better writers after they take a business writing course. To test this hypothesis, she gets a set of students to write a memo just before they take a business writing course. They then write another memo at the end of the course. She scores both memos on a 20-point scale (higher scores are better) and subtracts the earlier score from the later score. There are 14 students in the study. What are Ho and Ha? O Ho: Memo scores are the same at both times; Ha: Memo scores are systematically higher after the course (O Ha: Memo scores are the same at both times; Ho: Memo scores are systematically higher after the course O Ho: Memo scores are the same at both times; Ha: Memo scores are systematically lower after the course O Ho: Memo scores are the same at both times; Ha: Memo scores are systematically different after the course