Question 1157864
<pre>
x = 0.35*450 = 157.5, which is not a whole number of people, so we round up to
158.  (some teachers say to round down.  You'll have to ask your teacher. Maybe
he or she wants you to round down to 157. It will make a difference in the third
decimal place of the interval bounds.) 

On your TI-84

Press STAT
Press right arrow key to highlight TESTS
Scroll down with down arrow key to 1-PropZInt...
Press ENTER
Make the screen read like this:

       1-PropZInt        
x:158
n:450
C-Level:0.95
Calculate

Use down arrow to highlight Calculate
Press ENTER

Read

(0.30701,0.39521)
p̂=0.3511111111
n-450

The confidence interval is 0.30701 < p < 0.39521

Edwin</pre>