The strength of one's immune system can be evaluated in several ways. One of most popular techniques involves measuring the concentration of adenosine triphosphate (ATP) in blood. In women, the mean blood ATP level is 390 ng/mL, and standard deviation is 115 ng/mL.
It has been hypothesized that women with the Major Depressive Disorder (MDD) have decreased immune function. A recent study found that the random sample of 61 women with MDD had an average blood ATP level of 355 ng/mL.
Using a one-sample z test, Determine the p-value of this result?