Question
Use the information in the scenarios to complete the hypothesis testing process. Your final answer for each scenario should include all four parts of Step
Use the information in the scenarios to complete the hypothesis testing process. Your final answer for each scenario should include all four parts of Step 6 of the hypothesis testing process. 1. Dr. Skiba was an administrator for the Vincent Consolidated School System. He wanted to assess whether the system's rural students had a higher rate of absenteeism than the population of students in the school system. To research this question, he selected a random sample of 80 students living in rural areas. The students in the sample were absent an average of 4.63 days (s = 1.17) during the last school year. Dr. Skiba knew that the average number of absentee days for all the students was 3.79. Do rural students have a higher number of absences than the population of students? Use alpha = .05; if appropriate, calculate a 95% confidence interval and an effect size (use Cohen's d). 2. Professor O'Meara wanted to assess whether the average age of psychology students was statistically lower = from the average age of all students in the College of Science and Health (CSH). To investigate, she selected a random sample of 100 psychology students. The sample had an average age of 20.57 years (s = 2.09). Based on university records, Professor O'Meara knew that the average age of all CSH students was 23.94 years. Is the average age of psychology students lower than the average age of all CSH students? Use alpha = .05; if appropriate, calculate a 95% confidence interval and an effect size (use r2). SQ2022
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