The probability of NOT rejecting a null hypothesis when it is false is called?

The probability of NOT rejecting a null hypothesis when it is false is called?
 
  a. a Type I error
  b. a Type II error
  c. experimenter error
  d. method error

Question 2

The _______ assumes all means are equal for a given measure?
 
  a. alternative hypothesis
  b. random hypothesis
  c. predicted hypothesis
  d. null hypothesis

Question 3

After running a t-test on the mean numbers of jelly beans that men and women eat over the course of the year, I conclude that men eat significantly more jelly beans than women. If men and women actually eat the same number of jelly beans, my conclusion is
 
  a. a valid conclusion
  b. a Type I error
  c. a Type II error
  d. an example of power