Question

What would be Type I or Type II errors in these scenarios:

If a consumer group wants to see if people can tell whether they are drinking tap water or bottled water would this create a Type I or Type II error?

If a college instructor wishes to see whether his students prefer to work on assignments individually or in groups would a Type I or Type II error occur?

If a teacher is evaluating a program designed to improve math skills and gives her students a test before and after the program would this result in cause a Type I or Type II error?

If a college student conducts searches on two different Internet search engines to see if they differ in terms of the number of relevant results provided would there be a Type I or Type II error?.

Answer 1

simple way to solve this problem is in most cases when sample size is large type 2 error occurs and when sample size is small errors are influenced by surveyors perception and creates type 1 error