Use the scоres belоw tо cаlculаte the observed t-test score to test the prediction thаt the students study the recommended minimum of 15 hours a week. 17 7 9 22 20 29 18 15 12 27 **Report your final answer to 4 decimal places. **To receive credit for this problem you need to submit a picture of your hand calculations. The picture should show the formulas you used and your hand calculations, including the intermediate steps.