answer two questions about sample and survey

Please answer the 2 essay questions below and each questions needs about 350-500 words.

• You are tasked with developing a sample of 100 employees from a population of 400 employees. Approximately 60% of the employees are women and 40% of the women are racial/ethnic minorities. Approximately 33% of the male employees are racial/ethnic minorities. Discuss how you might develop a stratified fandom sample and tell me how many racial/ethnic minority females and how many racial/ethnic minority males will eventually be in your sample.
• Provide a detailed discussion of the advantages and disadvantages associated with using closed and open-ended questions in conducting surveys involving human research subjects.