Question

1. Results of the Core Alcohol and Drug Use Survey indicate that 2% of college freshmen have used marijuana in the last week, 10% of college freshmen have used marijuana within the last 30 days, and 29% of college freshmen have used marijuana in the last year. The University of Colorado conducts its own survey, and finds the following:      

	Used in the Last Week	Used in the Last Month	Used in the Last Year
Number of Students	5	7	30

Is the distribution of marijuana use on the University of Colorado campus approximately normal? Use α = .05 as your level of significance.

Step 1.           Set up hypotheses and determine level of significance

           

Step 2.            Select the appropriate test statistic

                                             

Step 3.            Set up decision rule

                                   

Step 4.            Compute the test statistic

                       

Step 5.            Conclusion

Answer 1