Draw the conclusion by conducting the test of hypothesis. Show the solution using the critical-value method and the p-value method.

1. A previous study on the effect of blended learning model on senior high school students' achievement revealed that their mean score u is 85 with a standard deviation of 3. Juliana, a Senior High School Statistics teacher, surveyed a class of 30 students in Statistics and found out that their mean score was 83 with a standard deviation of 4. Test the hypothesis at a 0.10 level of significance