25. A In a study to test the effects of documentaries on people's support towards political campaign spending, seven people completed a measure of support towards political campaign spending before and after watching a documentary on the topic. Participants' scores are listed below with high scores indicating higher levels of belief. Using the .01 significance level, carry out a t test to test the experimenter's assumption that the participants' support in political campaign spending would change after watching the documentary. Use the five steps of hypothesis testing. Calculate Effect Size for Extra Credit Support Towards Political Campaign Spending Before and After Watching Documentary Participant Before After A 6 2 B IWA - W W