Researchers wish to test whether marijuana use among full-time college students aged 19-22 at a local university is different from the percent of students who report using marijuana at the national level. At the national level, 21% of full time college students aged 19-22 reported using marijuana at least once in the past 30 days. At the local university, among a random sample of 100 students, 18% report they used marijuana at least once in the past 30 days. Run the appropriate test at α=.05. Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. What do the results mean? You MUST show your work to receive full credit. Partial credit is available.
Researchers wish to test whether marijuana use among full-time college students aged 19-22 at a local university is different from the percent of students who report using marijuana at the national level. At the national level, 21% of full time college students aged 19-22 reported using marijuana at least once in the past 30 days. At the local university, among a random sample of 100 students, 18% report they used marijuana at least once in the past 30 days. Run the appropriate test at α=.05.
Give each of the following to receive full credit: 1) the appropriate null and alternative hypotheses; 2) the appropriate test; 3) the decision rule; 4) the calculation of the test statistic; and 5) your conclusion including a comparison to alpha or the critical value. What do the results mean? You MUST show your work to receive full credit. Partial credit is available.
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 2 images
