1. The Human Resource (HR) Manager is concerned about the attrition rate in the HR department. He claims that the attrition rate in the HR department is higher than the overall attrition rate for all departments which is approximately 16%. Based on the sample data, is there evidence to support the claim at the 5% level of significance?
2. Interpret the Type II Error in the context of this question.
3. Discuss the business implication of the error interpreted above.