ypothesis Testing with the p-value Method A high school principal claims that the average senior score was at least 25 on the ACT college entrance exam. A sample list of 32 student scores are shown...

Extracted text: ypothesis Testing with the p-value Method A high school principal claims that the average senior score was at least 25 on the ACT college entrance exam. A sample list of 32 student scores are shown below. At the 0.01 level of significance, is there enough evidence to REJECT the principal's claim? 27 28 29 30 19 23 25 25 22 27 26 19 16 22 20 21 18 23 23 19 22 23 28 18 17 13 32 35 20 21 25 30 1.) Is this a hypothesis test for mean or proportion? If it's a test for mean, do we know the population standard deviation? 2.) Based on your answer in #1, which calculator will you use: A.) Mean- o Known, B.) Mean - o Unknown or C.) Proportions 3.) Will we use a Z-test or t-test? How do you know?