in [4] : import scipy.stats as st # Mean relative skill level of your team mean_elo_your_team = your_team_of[ 'elo_n' ] . mean() print("Mean Relative Skill of your team in the years 2013 to 2015 =", round(mean_elo_your_team, 2)) # Hypothesis Test # - - -- TODO: make your edits here - - -- test_statistic, p_value = st. ttest_1samp (your_team_df[ 'elo_n' ], 1420) print( "Hypothesis Test for the Population Mean") print("Test Statistic =", round(test_statistic, 2) ) print( "P-value =", round(p_value,4) ) Mean Relative Skill of your team in the years 2013 to 2015 = 1562.57 Hypothesis Test for the Population Mean Test Statistic = 30.97 P-value = 0.0