In: Statistics and Probability
A professor of business at a local college wanted to determine which of his two methods of teaching statistics resulted in better grades. He randomly selected 30 students from his current classes and set up two special sub-sections of the course, one for each of his two methods, with 15 students in each sub-section. After the semester was over, he placed the final averages for each of the students in a spreadsheet and wanted to determine if the difference in the average scores of the samples indicated that there would be a difference in the scores of the population of students.
Use the correct Excel function found in Data Analysis to determine if the population average scores of the two methods are the same. At the bottom of the Excel worksheet, write a Decision Rule and Conclusion Statement
Method 1: 86, 69, 85, 68, 68, 68, 87, 85, 85, 72, 67, 73, 84, 66, 76
Method 2: 91, 94, 55, 96, 70, 91, 58, 87, 64, 87, 95, 65, 86, 75, 88