The starting salary (in $) of nurses in a particular parish follows a normal distribution with mean = 50,000 and standard deviation = 5,000. A random sample of n nurses is taken, and the sample average \bar{X} is observed.

P(52,000 < \bar{X} < 58,000) withn= 25 is

Select one:

a. almost 1

b. 0.4515

c. 0.6800

d. 0.9544

e. NOTA