spotify_confidence/analysis/frequentist/confidence_computers/z_test_computer.py [287:297]:
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def required_sample_size(
    binary: Union[Series, bool],
    non_inferiority: Union[Series, bool],
    hypothetical_effect: Union[Series, float],
    control_avg: Union[Series, float],
    control_var: Union[Series, float],
    z_alpha: float = None,
    kappa: float = None,
    proportion_of_total: Union[Series, float] = None,
    z_power: float = None,
) -> Union[Series, float]:
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spotify_confidence/analysis/frequentist/confidence_computers/z_test_linreg_computer.py [131:141]:
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def required_sample_size(
    binary: Union[Series, bool],
    non_inferiority: Union[Series, bool],
    hypothetical_effect: Union[Series, float],
    control_avg: Union[Series, float],
    control_var: Union[Series, float],
    z_alpha: float = None,
    kappa: float = None,
    proportion_of_total: Union[Series, float] = None,
    z_power: float = None,
) -> Union[Series, float]:
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