Med Health (Pty) Ltd provide medical aid covers that is affordable with variety of medical aid options. The directors of the company point out during 2021 and 2020 financial years, sales had declined and members were cancelling they medical aid membership. The financial director had provided the quarterly sales analysis for 2021 and 2020 financial year presented below: 2021 Number of medical claims Sales Quarter one 8 R000 12 000 16 000 Quarter two 9 Quarter three 12 10 000 Quarter four 15 13 000 2020 Quarter one 6 10 000 Quarter two 7 15 000 Quarter three 15 17 000 11 000 Quarter four 8 Additional information Survey conducted for the 2021 financial year, analyzing medical claim options and the cost of these options. Out of three hundred surveys, 80% of the survey will be analyzed. The purpose of the survey is to analysis client's satisfaction on the medical aid options and to introduce affordable options. Required a) Identify the following from the paragraphs above: 1. The random variables under analysis [2] II. Population size [1] III. Sample size [1] IV. Sample unit [1] b) Briefly comment on the random variables data type and measurement of scales. [4] c) Analysis the medical claims by calculating a three-period moving average. [12] d) List four components of a time series. [4] 00 Med Health (Pty) Ltd provide medical aid covers that is affordable with variety of medical aid options. The directors of the company point out during 2021 and 2020 financial years, sales had declined and members were cancelling they medical aid membership. The financial director had provided the quarterly sales analysis for 2021 and 2020 financial year presented below: 2021 Number of medical claims Sales Quarter one 8 R000 12 000 16 000 Quarter two 9 Quarter three 12 10 000 Quarter four 15 13 000 2020 Quarter one 6 10 000 Quarter two 7 15 000 Quarter three 15 17 000 11 000 Quarter four 8 Additional information Survey conducted for the 2021 financial year, analyzing medical claim options and the cost of these options. Out of three hundred surveys, 80% of the survey will be analyzed. The purpose of the survey is to analysis client's satisfaction on the medical aid options and to introduce affordable options. Required a) Identify the following from the paragraphs above: 1. The random variables under analysis [2] II. Population size [1] III. Sample size [1] IV. Sample unit [1] b) Briefly comment on the random variables data type and measurement of scales. [4] c) Analysis the medical claims by calculating a three-period moving average. [12] d) List four components of a time series. [4] 00