An Effective Means of Choosing the Sample - Case Study Example

An effective means of choosing the sample would be through selecting a sample between 1 and “N” insofar as every nth person should be selected. From this perspective the sample should be dependent on the number of people entering the store but if we were to select one out of every five people that would represent twenty percent of overall entrants into the store. The method of determining information from the customers would be an in-person survey with close-ended questions.

            In situation #2 it is my recommendation that the airline should use a convenience sampling method. The means by which we should select the sample would have to be proportionally representative insofar as we and not only looking for people who would typically fly in airplanes but must also be university students. Finally, the sample size should be restricted by the overall budget. If the cost is $75 per student we would need to determine how many people we can interview based on the overall budget is $7,500 then the number of interviewees would be 100. However, the number should ensure that the confidence level is larger than 95%.

            In situation #3 the type of sample that should be utilized is a systematic sampling method in which every nth person is chosen at a predetermined point in the city. The method of choosing the sample should be along the lines of every fourth or fifth tourist that they encounter. The size of the sample was already predetermined at 500 people per month

            In situation #4 the best type of sample to be used would be quota sampling. The populations could be stratified based on homeowner location. Secondly, the method of selecting the sample can be selected at random but some sort of financial incentive should be given to ensure that respondents spend an hour during the interview process. The sample size was already predetermined to be 3000 respondents. Read More