The engineering specifications provide that a gasket should be between 395 mm and 405 mm, otherwise a gasket is defective. Assuming the process is working correctly; find the probability that a randomly selected gasket is not defective. Use Excel's built-in function for the Normal distribution to answer the question.

Sample Statistics	3a
Mean OD =	386.73
Std Dev OD =	2.15
Max OD =	391.78
Min OD =	381.77
Assumed Parameters
Mean =	400
Std Dev =	2
Std Err =	0.20
	Lower	Upper
Limits	399.40	400.60