Suppose We Wish to Test $H _ { 0 } : \mu = 43$

Multiple Choice

Suppose we wish to test $H _ { 0 } : \mu = 43$ vs. $H _ { \mathrm { a } } : \mu > 43$ . What will result if we conclude that the mean is greater than 43 when its true value is really 45 ?

A) a Type II error
B) a Type I error
C) a correct decision
D) none of the above