Based on the below population and sample, what are the criteria for the population and the sample? Why you set these requirement? Speak about data saturation and sampling size. Identify data triangulation and type of information to be used and where you will get it from.

The population for this study would be financial institutions operating within the financial services sector. This includes banks, credit unions, and insurance companies, that provide financial services to individuals, businesses, and governments.

The sample for this study would be a selection of financial institutions within the financial services sector. The selection could be based on factors such as size (small, medium, large), type (bank, credit union, insurance company), and location (urban, rural). The sample size would depend on the scope of the study and the resources available. For example, if the study is nationwide, the sample might include financial institutions from different regions of the country. If the study is more localized, the sample might only include financial institutions within a specific city or state. The sample will be representative of the population to ensure the validity and reliability of the study's findings.

To select the sample, a random sampling method will be used to ensure each financial institution in the population has an equal chance of being selected. Random sampling would help to reduce bias and increase the generalizability of the study's findings. Alternatively, a stratified sampling method could be used to ensure the sample includes financial institutions of different sizes, types, and locations. This would help to ensure the sample is representative of the diversity within the population.

Once the sample is selected, data could be collected through surveys, interviews, or observation to investigate the relationship between the quality of customer service and revenue generation. The data could then be analyzed using statistical methods to identify patterns, trends, and correlations. The findings could provide valuable insights into how financial institutions can improve their customer service strategies to maximize revenue growth and contribute to economic development.