mr.rogers bought a computer that cost 2,500. the sales tax rate was 7% how much did he pay for the computer
1 answer:
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Answer:
<em>95% of confidence interval for the proportion of registered voters who are in favor of raising income taxes to pay down the national debt.</em>
<em>(0.414 ,0.474)</em>
Step-by-step explanation:
<u><em>Step(i)</em></u>:-
<em>Given sample proportion </em>
<em> p⁻ = 44.4 % = 0.444</em>
<em>Random sample size 'n' = 1049</em>
<em>Given margin of error for 95% confidence level = 3 % = 0.03</em>
<u><em>Step(ii):-</em></u>
<em>95% of confidence interval for the proportion is determined by</em>
<em></em>
we know that
<em>Margin of error for 95% confidence level is determined by</em>
<u><em>Step(iii):-</em></u>
Now
<em> 95% of confidence interval for the proportion is determined by</em>
<em></em>
<em>Given Margin of error </em>
<em> M.E = 0.03</em>
<em>Now 95% of confidence interval for the proportion</em>
<em></em>
<em>(0.414 ,0.474)</em>
<u><em>Conclusion:-</em></u>
<em>95% of confidence interval for the proportion of registered voters who are in favor of raising income taxes to pay down the national debt.</em>
<em>(0.414 ,0.474)</em>
Answer:
x = 6
Step-by-step explanation:
Given
y = x - 3 and y = 11, thus
x - 3 = 11 ( add 3 to both sides )
x = 14
Multiply both sides by 3 to clear the fraction
7x = 42 ( divide both sides by 7 )
x = 6