Managers should never make decisions unless they have enough data to make a perfect statistical decision based on sufficient values for the mean standard deviation, and Sample size False. Although math and data can help make decisions clearer, eventually we always just have to make a judgment call True. Managers who fail to account for all possible data, even if a decision must be delayed, will always make an interior decision, O True Managers who take the time to consult with the staff and boy sources of evidence will never arrive at an inferior decision False Managers can usually just have a tan difference and make a judgment call that is right at a 95% confidence interval