The human resources manager of a company with 500 people on its payroll has been asked by the general manager to consider formulating an implementable flexitime policy. The HR manager feels that such a policy is not necessary because everyone seems happy with the nine to five hours, and no one has complained. Formulating such a policy now, in the opinion of the HR manager, runs the risk of creating problems on the home front for the staff and scheduling problems for the company. She wants, however, to resort to a simple random sampling procedure to do a survey. With the positive results she could convince the general manager that there is no need for flextime, and urge him to drop the matter. The questions/instrument for the survey is adopted from John et al. (2010) who conducted a study on perceptions of flexitime policy among employees. i) Explain any two types of Probability Sampling. In your opinion, why do you think the HR manager use simple random sampling in this study? (10 marks) ii) The HR manager plans to conduct survey. Explain the methods that can be used to evaluate the survey questionnaire. (8 marks) iii) "Whenever available, it is advisable to use instruments that have been developed and repeatedly used in published studies rather than developing your own instruments for your research project". Do you agree? Discuss the reasons for your opinion. A G (7 marks)