# store into variables
week_1 = weekly_data[0]
week_2 = weekly_data[1]
week_3 = weekly_data[2]
week_4 = weekly_data[3]

# TODO: Compute average sleep
week1_avg_sleep = np.mean(week_1[:, 1])
week2_avg_sleep = np.mean(week_2[:, 1])
week3_avg_sleep = np.mean(week_3[:, 1])
week4_avg_sleep = np.mean(week_4[:, 1])