Question

2. When Professor Rodríguez conducted the proofreading study, the average number of errors detected in the print and computer conditions was 38.4 and 13.2, respectively; this difference was not statistically significant. When Professor Seuss conducted the same experiment, the means of the two groups were 21.1 and 14.7, but the difference was statistically significant. Explain how this could happen

Answer 1

Answer in explanation

Explanation:

In this question, we are asked to determine what could have happened if the same experiment carried out by two academicians turned out to five different results statistically.

What majorly could have caused this is the difference in sample size. In a scientific experiment, the term sample size refers to how many individual observations are present.

Due to this difference in sample size, an experiment conducted with more sample size is expected to yield a greater amount of degree of freedom.

Thus, the small differences between the groups of observations are likely to be statistically significant.