Scenario: An instructor at Los Medanos College conducted an experiment with her statistics class to study the effect of texting on concentration. She created two audio clips in which she read two different lists of words. The treatment required students to send a short text message to a friend while listening to one of the audio clips. In the control setting, students simply listened to one of the audio clips. Everyone wore earphones and listened to the audio clips in the same order. But a coin flip determined who was and was not texting each time. After each listening session, students had 2 minutes to write down all the words they could remember. Twenty three students participated in the experiment. Answer the following questions to test a hypothesis based on this scenario. The T-Distribution Calculator is provided at the end of the quiz. Question 1 1 pts What is the null hypothesis? [ Select ] What does u represent in the null hypothesis? [ Select ]