2. Wilson (1999) studied impulse control in grade school children. She studied 25 average third graders and found a failure of impulse control 4.6 times per day with a standard deviation of 2.1 times...

Extracted text: 2. Wilson (1999) studied impulse control in grade school children. She studied 25 average third graders and found a failure of impulse control 4.6 times per day with a standard deviation of 2.1 times per day. Wilson also studied 36 third graders diagnosed with ADHD and found that they showed failures of impulse control on average 7.2 times per day with a standard deviation of 3.1. Use a = .05 and a two- tailed test. Do third graders with ADHD have more trouble with impulse control? Complete all 4 steps of hypothesis testing.