A researcher calculates an F-ratio comparing the GPAs of three different SJSU majors: Major A (M = 2.70), Major B (M = 2.87) and Major C (M = 3.01). If she makes the decision to NOT reject the null hypothesis, what is the most specific and appropriate conclusion she can draw?
A) The SAT scores for the three groups are all different from each other.
B) The analysis supports the research hypothesis.
C) The GPAs of the three majors are not significantly different.
D) No conclusion can be determined without conducting further analyses.

Question

Quizplus · Accepted Answer

Since the researcher decided to not reject the null hypothesis, it means that there is not enough evidence to support the claim that the GPAs of the three majors are significantly different. Therefore, the most specific and appropriate conclusion is that the GPAs of the three majors are not significantly different. Answer choice A is not relevant to the analysis conducted, answer choice B is too vague and does not accurately reflect the outcome of the analysis, and answer choice D is incorrect since a conclusion can be drawn based on the researcher's decision to not reject the null hypothesis.

A Researcher Calculates an F-Ratio Comparing the GPAs of Three