A Researcher Wishes to Test H₀ $\mu$ = 50 Versus H_a $\mu$

A researcher wishes to test H₀: $\mu$
= 50 versus H_a: $\mu$
> 50.A sample of size n = 25 is take from a normally distributed population with mean $\mu$
= 55 and standard deviation is $\sigma$
= 10.What is the power of the test at the 5% level of significance?

A) 0.3594
B) 0.1949
C) 0.8746
D) 0.6406
E) 0.8051