State which sampling design should be used in the followingsituations, and justify your reasoning:
i. You need to collect statistics on types of softwareapplications used by employees of a company. Separate lists ofemployees are available classified by job categories.
ii. Patients arriving at an emergency room facility are to besampled to study their demographics, type of injury, etc. It isdecided to sample 10% of the patients.
iii. An engineering school plans to conduct a mail survey of itsalumni who graduated after 1980 to collect data on their currentemployment status. A complete alphabetical list of the alumni isavailable.
iv. A national sample of college students is to be taken, but acomprehensive list of all college students doesn't exist. A list ofall colleges (private and public) exists. For any particularcollege, a list of all students can be obtained.
