Question

# H0: µ = 100 H1: µ ≠ 100 Find the P-value for the following values of...

 H0: µ = 100 H1: µ ≠ 100 Find the P-value for the following values of the test statistics a. Z0=2.75 b. Z0=1.86 c. Z0=-2.05 d. Z0=-1.86 2x[1-Φ(|Z0|)]=P

This is the equation I am struggling with. It is for my statistical quality control class. If you would like to look up the textbook on this website, it is called Introduction to Statistical Quality Control (seventh edition) by Douglas C. Montgomery. I am working on Chapter 4, Equation 1. Now if you look at the information I provided above, that very last equation is what I am supposed to use to find my P values. Now that is all fine, but I have no idea what phi is equal to. That is not explained in my textbook at all. So what I did was ended up researching what it is equal to and found out that is supposed to be equal to 1.618. Well when I go to input that value into this equation, I get a completely different answer from what the textbook is giving me. I have spent about three hours trying to look for this value, and it is starting to get frustrating. I am not sure what I need to do to find this value, but any help would be appreciated.