def example_data_gaussian():
    df = pd.DataFrame({'variation_name': ['test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2'], 'nr_of_items': [500, 8, 100, 510, 8, 100, 520, 9, 104, 530, 7, 100, 530, 8, 103], 'nr_of_items_sumsq': [2500, 12, 150, 2510, 13, 140, 2520, 14, 154, 2530, 15, 160, 2530, 16, 103], 'users': [1010, 22, 150, 1000, 20, 153, 1030, 23, 154, 1000, 20, 150, 1040, 21, 155], 'days_since_reg': [1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5]})
    return df
def example_data_gaussian():
    df = pd.DataFrame({'variation_name': ['test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2', 'test', 'control', 'test2'], 'nr_of_items': [500, 8, 100, 510, 8, 100, 520, 9, 104, 530, 7, 100, 530, 8, 103], 'nr_of_items_sumsq': [2500, 12, 150, 2510, 13, 140, 2520, 14, 154, 2530, 15, 160, 2530, 16, 103], 'users': [1010, 22, 150, 1000, 20, 153, 1030, 23, 154, 1000, 20, 150, 1040, 21, 155], 'days_since_reg': [1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5]})
    return df