overseas customers with their in-patient experience by recruiting 200 previous patients to answer a survey.sampling frame: A Listsurvey method: Questionnaire (multiple languages) sampling technique: Probability Sampling Technique (Stratified Sampling)Firstly, 200 patients were stratified according to nationality. And then, Satisfaction surveys are issued in the form of questionnaires in different language types.why the proposed sampling plan is appropriate?• Effectively reduce sampling error (achieve "representation")• Less subjective (reducing humanity)• Results are useful for predictive analysis• Results are easily extended to the entire populationc.A Monash researcher wants to recruit 12 unlicensed sex workers to conduct in-depth interviews for a report to better inform policy makers on this issue (for this scenario, just propose a sampling technique. No need to talk about sampling frame or survey method). sampling technique: non-probability sampling techniques (Snowball Sampling) The sampling framework needs to find a sex worker. After an in-depth visit, let her recommend another sex worker who is willing to participate in the survey.