Suppose a single-sample z-test was conducted to compare a sample of high school students to the high school student population. The null hypothesis was two-tailed, and stated that the sample did not differ significantly from the population. The z-test result was 1.22. Which of the following interpretations is correct? Group of answer choices The sample is fairly representative of the population. The null hypothesis failed to be rejected. The difference between the sample and the population was not statistically significant. All of these