Explain how you would choose a simple random sample ii . Explain how you would choose a sample using systematic (interval) sampling method QUESTION TWO (2) The following date set provides a smapshot of the financial performance of XYZ hospital 1903 1907 1905 Earning per share K2.75 K2.13 K3.41 K3.83 Revenues (Millions ) KII. K12.37 K13.43 K14.92 Net Income (Millions ) KI.51 KI.I K1.89 Book Value per Share K14.33 KIO.98 K12.6 i . How many variables are there ? Name there variables Are the data qualitative or quantitative (b) A doctor's office staff has studied the waiting times for patients who arrive at the office with a request for emergency service. The following data were collected over a 1 -month period (the waiting times are in minutes ). 10 12 17 11 8 9 12 13 18 Use classes of 0 - 4. 5 - 9, and so on i . Show the frequency distribution ii. Show the relative frequency distribution iii Show the cumulative frequency distribution iv . Show the cumulative relative frequency distribution V- Construct a histogram vi What proportion of patients needing g emergency service have a waiting time of 9 minutes or less ? (c) Indicate the measurement ecale (Nominal . Ordinal . Interval , Ratio ) that is appropriate for each of the following 1 . Annual sales ii. Method of payment (cash , check , credit card ) iii Employee classification (GS1 through GS18 )