A study aimed to test whether participating in an after-school activity led to lower screen time usage. Researchers randomly selected 20 students who participated in after-school activities and 20 students who did not participate in after school activities. Each student completed a survey on their typical daily screen time use. First, read the data in for analysis. Use R to calculate the quantities and generate the visual summaries requested below. You will lose points if you are not utilizing R.

(1) Clean the data, then summarize the data by whether students participated in after school activities (i.e., report summary statistics by group). Use an appropriately labelled table to show the results (do not copy-paste R output). Report a visualization that shows the distribution of screen time use for students in activities vs not in activities. Describe the shape of each distribution and comment on the similarity (or lack thereof) between the distributions in each population.

(2) Does the mean screen-time use for those who are active after school differ from 125? Formally test at the

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