Ok so 3x3=9 and 4x4=16
So plus the two sums together
9+16=25
The state income tax owed on an $80,000 per year salary is; $4323
<h3>How to find the Total Tax?</h3>
We are given the progressive tax range for each income tax range as;
Income Tax Range of 0 to 3000 has a progressive tax rate of 2%.
Income Tax Range of 3001 - 5000 has a progressive tax rate of 3%
Income Tax Range of 5001 - 17,000 has a progressive tax rate of 5%
Income Tax Range of 17,001 and up has a progressive tax rate of 5.75%
The total tax due will be the sum of the amounts due in each bracket.
(2% × $3000) + (3%× (5000 -3000)) + (5% × (17000 - 5000)) + (5.75% × (80000 - 17000))
Total Tax Due = 60 + 60 + 600 + 3622.5
Total Tax Due = $4322.5 ≈ $4323
The state income tax on $80,000 is $4323
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<h2>
Answer with explanation:</h2>
Let p be the population proportion of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Given : Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of education the students receive.
Set hypothesis to test :

Sample size : n= 1055
Sample proportion : 
Critical value for 95% confidence : 
Confidence interval : 

Since , Confidence interval does not contain 0.39.
It means we reject the null hypothesis.
We conclude that 95% confidence interval represents evidence that parents' attitudes toward the quality of education have changed.