Enter the data below into Excel and answer the questions that follow. Show all of your steps. You can use a formula if needed for calculating means and standard deviations, but it must be the correct form of standard deviation. Provide all of your answers in your Excel document and highlight your answer for each question. Then upload your Excel file. Pretest Post-test 72 92 63 52 81 88 77 82 44 80 51 85 92 95 67 72 83 92 63 97 1. What are your null and alternative hypotheses? (1 point) 2. Using the appropriate t-test for these data, calculate your t-score. What is it? (2 points) 3. What is your df? (1 point) 4. What is your critical value? (1 point) 5. Are your results statistically significant? (1 point)