<h2>
Answer with explanation:</h2><h2>
</h2><h3>The confidence interval for population proportion is given by :_</h3>
Where : 
is the margin of error , n is the sample size , p is the sample proportion of success and 
is the significance level.
Given : Confidence level : 
Then , Significance level : 
Sample size : 
Sample proportion of respondents chose chocolate pie: 
Margin of error : 
Maybe something like this:
1.69 = 169 / 100
√ 1.69 = √ ( 169 /100 ) = √169 / √ 100 = 13 / 10 = 1.3
Thank you.
Hmmm Interesting: 189.5+129.5+99.5+53
I got 471.5 Dollars....
Because Look If they buy 10 tickets each category it be 18.95 times 10= 189.5
then 12.95 times= 129.5 , Then 9.95 times= 99.5.... Also if they plan to get 30 combos it be also 5.50 times 30,,, You add the answers and it will give you 471.5 dollars. You can try doing it in a caculator (:
the local maximum is at x = -2.2 and has a value of 72.576
