Walter Jennings, a quantitative analyst with Smith, Kleen & Beetchnutty Brokerage, has just been informed of an important error in one of his recent statistical endeavors. Specifically, in one hypothesis test, Mr. Jennings failed to reject a null hypothesis that later was proven to be false. Which of the following best describes this type of error in hypothesis testing? Further, if the confidence level of the test were increased, would the probability of this error increase, decrease, or is this probability
A. ype II error; difficult to determine
B. ype I error; difficult to determine
C. ype I error; decrease
D. ype II error; decrease
E. ype I error; increase
F. ype II error; increase