A biology teacher has developed a new method of teaching chi-square tests to her students. She claims this new method will improve scores on the national exam. An experiment is to be conducted to determine if there is sufficient evidence to make that claim. Which is a correct description of a Type I error? A Type I error would occur if evidence showed an improvement on the national exam and there really was improvement. A Type I error would occur if evidence showed an improvement on the national exam but there really was no improvement. A Type I error would occur if there was no evidence of an improvement on the national exam but there really was improvement. A Type I error would occur if there was no evidence of an improvement on the national exam and there really was no improvement. A Type I error would occur if the mean of the national exam increased for all students, not just the students of this biology teacher.