Discussion:
I) State the null and alternate hypothesis.
II) Determine the rejection region. For example "if , then reject ".
III) Determine the Test Statistic.
IV) Conclude either "Reject " or "Do not reject " based on your analysis and answer the question (either YES or NO) .
V) Determine the p value of the test.
At the Kinglet School District, the average score over the past 5 years for the math portion of the Scholastic Aptitude Test (SAT) was 511. An educator believes that recent changes to the curriculum have resulted in improved scoring on this test. In an attempt to verify this she gathers a SRS of 12 students and has them take the math portion of the SAT with the following results
520 480 550 610 490 500 510 550 560 480 500 530
Does this evidence support the educator's claim that the scores have improved at her school at the 5% significance level?