Hi, please answer Question 1(A,B and C) please, data is provided.

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 one-month 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 o: = 0.01 for this test. You must show all calculations (do not include Minitab output, but you may use Minitab to obtain summary statistics). Your answer needs to include (7 step process meets these requirements): I A clear statement of the hypotheses in terms of the parameter(s) of interest. . Calculate se(estimator). I Calculate the test statistic, and give its distribution under the null hypothesis. - Give a range for the P-value for the test, using the tables in the Problem Booklet. . State your conclusion in the context of the data. (c) Researchers have decided that it would be useful to detect an improvement of 0.1 units in contrast sensitivity, with a 0.01 significance level. Assuming that the sample standard deviation sdm = 0.22, use Minitab to find the sample size required to have a power of 0.9. Include your graph and your nal answer. \fDo Videogames improve Eyesight? For questions 1 and 2 you will need to access the data file 2019 Asst2 (file can be downloaded from the Assignments link as a Minitab worksheet and also as an Excel file). The Variables: Column Name C1 Pre Contrast sensitivity scores for amblyopia patients at the start of the study. C2 Post Contrast sensitivity scores for amblyopia patients at the end of the study. C3 AVG Contrast sensitivity scores for action videogame players C4 NAVG Contrast sensitivity scores for non-action videogame players\f