The turnover of 3.1 people per 2 week period with a 2.2 person standard deviation as well as was causing a crisis. 3 of us ran some surveys, took suggestions back to the workforce as well as started making some structural changes in system. Many months later, we reran the turnover assessment on 30 random surveys as well as determined the turnover rate was 1.9 people per 2 weeks. Test as a large sample Z test, at the 1 tail test 0.05 alpha
Formulate both the numerical and verbal hypothesis statement about your research issue.