Do Videogames improve Eyesight? For questions 1 and 2 you will need to access the data le 2019Asst2 (le can be downloaded from the Assignments link as a Minitab worksheet and also as an Excel le). The Variables: Column Name Cl Pre Contrast sensitivity scores for amblyopia patients at the start of the stud; C2 Post Contrast sensitivity scores for amblyopia patients at the end of the study. C3 AVG Contrast sensitivity scores for action videogame players 04 NAVG Contrast sensitivity scores for non-action videogame players Question 1: Does playing a videogalne help those with Amblyopia? [1+6+2=9marks] This question is based on simulated data for the study by S.T. Jeon et at. (2012) 'The Effect of Video Game Training on the Vision of Adults with Bilateral Deprivation Ambly opia', Seeing and Perceiving, which you can read about here: https: / / www.te1egraph.co.uk/ news / science / sciencenews / 9088 262 / Playingvi deogamesimprove eyesight.html (also linked on the Assignments page of the LMS). You DO NOT need the information from either of these articles to answer the questions; they are provided for interest only. Amblyopia (childhood cataracts) are an eye problem, present from a young age, which can be corrected using surgery and special contact lenses. However, their eyesight continues to function below average. The contrast sensitivity for each participant was measured before beginning the videogame training; they spent 40 hours playing 'Medal of Honor' over a onemonth period; and their contrast sensitivity was measured again. A higher value for contrast sensitivity represents better eyesight. (a) Explain why these data are paired. (b) Conduct a hypothesis test to determine whether there was an improvement in the participants' eyesight. You should use a signicance level of or = 0.01 for this test. You must show all calculations (do not include Minitab output, but you may use Minitab to obtain summary statistics)