You wonder if students who use a lot of social media applications feel more isolated than the average student. Previous research shows that the average student self-reported isolation rating is 30. You poll 8 students who report high usage of social media applications and obtain their isolation ratings.

Step 1: Write out your Research and Null Hypothesis.

25, 40, 45, 50, 32, 40, 29, 35

Step 2: What is your comparison mean?

Step 2: What is your comparison Standard Error?

*Round to the nearest hundredth (two decimal places)*

(HINT: the sum of squares for these numbers is 488)

Step 3: What is your critical value (cutoff score) for p<.05?

Assume this is a one-tailed test

Step 4: What is your sample t-score?

Round to the nearest hundredth (two decimal places)

Step 5: What do you conclude?