A researcher records the number of distracters (such as noises)that preschool-aged children ignore while watching a popular Sunday morning cartoon show.Assuming that the population variance is unknown,what type of t test is appropriate for this study?
A) one-sample t test
B) two-independent-sample t test
C) There is not enough information to answer this question.

Question

Quizplus · Accepted Answer

Since we are comparing the number of distracters that preschool-aged children ignore while watching a popular Sunday morning cartoon show to a known or hypothesized value, we use a one-sample t test. A two-independent-sample t test is used when comparing the means of two different groups, which is not the case in this study.

A Researcher Records the Number of Distracters (Such as Noises)that