Since this is a lower tail test, the probability that

H₀

will be rejected corresponds to the probability that

z<0.25.

Therefore, the probability of not rejecting

H₀

will be the upper tail. Recall that the normal probability table gives the area under the curve to the left of a givenz-value.Since we want the area to the right of

z=0.25

and the area under the entire curve is 1, the area to the left of

z=0.25

can be subtracted from 1.Use thestandard normal tableto find this probability, rounding the result to four decimal places.

upper tail area	=	1(lower tail area)
	=	1 _________
	=	___________