What is the best way to answer each of the questions below: an experiment, a sam

Question

What is the best way to answer each of the questions below: an experiment, a sample survey, or an observational study that is not a sample survey? Explain your choices.

(a) Are people generally satisfied with how things are going in the country right now? O An observational study; there is no particular population from which we will sample, we simply observe. O A sample survey; we want to gather information about a population based on a sample O An experiment; we want to establish a cause-and-effect relationship (b) Do college students learn basic accounting better in a classroom or using an online course? O A sample survey; we want to gather information about a population based on a sample O An observational study; there is no particular population from which we will sample, we simply observe. O An experiment; we want to establish a cause-and-effect relationship (c) How long do your teachers wait on the average after they ask their class a question? O An experiment; we want to establish a cause-and-effect relationship O An observational study; there is no particular population from which we will sample, we simply observe. O A sample survey; we want to gather information about a population based on a sample

Explanation / Answer

a) As we want to derive an inference about the entire population of the country , it is impossible to go and ask each and every individual about the opinions , so we shall take a representative sample survey and then infer the relationship using the inferential stats. hence correct answer is B

b) Here we want to check whether students learns basic accounting better in classroom or online course , so this woould be an experiment we perform , thus this would be an experiment to establish cause and effect relationship.

c) Here we just want to check the time teachers wait after asking a question , so this is an observational study .

Hope this helps !!

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