please help me to answer exercise 2. This are the information excel table

Exarclsez (35 marks =5+6+14+ 10) \"How can I lose weight?\" According to a recent study by the Centres for Disease Control and Prevention (CDC), between 2015 and 2018 near1y one in ve American adults older than 20 reported that they were following a particular eating plan on a given day,1 In response to this huge interest in weight-loss diet, not only in the US but in many other countries of the world as well, a large number of diet plans have been advertised on the internet. One of these programs, Slim as a Stick, was developed by a group of enthusiastic university students studying nutrition and dietetios. In order to demonstrate the effectiveness of their program, the students randomly selected 12 people and put them on their 16-week weight-loss diet. The weight of each participant was measured (in kilograms) and recorded both at the beginning and at the completion of the program, These measurements. labelled as Before and Aer. are saved in the a252.xlsx lile. Your task is to nd out whether these data provide ample evidence to conclude that Slim as a Stick indeed works. (a) (5 marks) What is the variable of interest? Is it qualitative or quantitative? If it is qualitative, is it ranked or unranked? Ii it is quantitative. is it discrete or continuous? What is its level of measurement? Explain your answers. (b) (6 marks) Given your answers in part (a) but without doing any preliminary data analysis, which tests do you think could be used to decide whether Slim as a Stick indeed works? Consider all relevant options and explain your choices. (c) (14 marks) What are the required conditions of the tests in part (b)? Are they satised? Explain your answer and provide as many supporting evidence as possible Which of these tests do you consider to be the most appropriate to nd out whether Slim as a Stick indeed works? Explain your choice. ' Siierrrlan. 5.. Ansai. N., Mishra. 5.. and Hales, CM. (2020): Special Diets Among Adults: United States, 20152018, NCHS Data Brief No. 389. ECONZOOOG Semester ', 2021 Assignment 2 (d) (10 marks) Perform your preferred test with R/RStudio at the 5% significance level. Do not forget to specify the null and alternative hypotheses, to report your observed test statistic, to make a statistical decision, and to draw a conclusion.