One​ season, the average little league baseball game averaged 2 hours and 43 minutes ​(163 minutes) to complete. Assume

[answerhappygod]

One​ season, the average little league baseball game averaged 2
hours and 43 minutes
​(163 minutes) to complete. Assume the length of games follows
the normal distribution with a standard deviation of
10 minutes.
What is the completion time in which 97.5​% of the games will
be​ finished?
Since 97.5% of the area is less than the​ x-value, 2.5​% of the
area is above the​ x-value. The area under the normal curve is
0.975. To find the​ x-value, use technology to find the​ z-value
that has an area of 0.975
to its left.
The​ x-value corresponds to z=1.96.
I have a question about the last sentence, how can we find the z
value corresponds to z=1,96 by formula in Excel? I dont get it
yet.
Thank you.