can I please get help on how to use R studio with this question .

2. The dataset 'anorexia' in the MASS package in RStudio contains data for an anorexia study. In the study, three treat ments (Treat) were applied to groups of young female anorexia patients, and their weights before (Prewt) and after (Postwt) treatment were recorded. The three treatments adminstered were no treatment (Cont), Cognitive Behavioural treatment (CRT), and family treatment (FT). Determine at the 5% signicance level if there is a difference in mean weight gain between those receiving no treatment and those receiving family treatment. Perform all necessary steps for the hypothesis test and interpret your results in the context of the study. Assume random selection and normal population distribution for all samples and populations. Important: Make sure the MASS package is selected under the packages tab in RStudio. Useful Tip: The command subset(a.norexia, Treat == "Cont")$Prewt could be used to access just the Prewt values for subjects in the Cont treatment group