EC Question 13: Confidence Intervals Homework . Answered . Due Dec 2nd, 11:59 PM Select the correct statement. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Increasing the level of confidence increases accuracy and increases precision of the confidence interval. b Increasing the level of confidence increases accuracy and decreases precision of the confidence interval. c Increasing the level of confidence decreases accuracy and increases precision of the confidence interval. d Increasing the level of confidence decreases accuracy and decreases precision of the confidence interval