Suppose the treatment is a new way of teaching writing to students, and the control is the standard way of teaching writing. We compare the students in the two groups on 40 different attributes related to writing, e.g. run-on sentences, comma splices, spelling, and so on. Ho: no difference in the scores for the two groups Ha: the treatment (new teaching method) group has better scores We find that the treatment (new teaching method) produces statistically significant improvement on two attributes: run-on sentences and sentence fragments. Why should we be cautious in believing the conclusions from this study? )The statistically significant improvements are probably due to Type I error. The statistically significant improvements are probably due to Type II error. The statistically significant improvements are probably due to sampling error The treatment is a better teaching method on these two attributes