Compare the functions shown below: f(x) cosine graph with points at 0, negative 1 and pi over 2, 1 and pi, 3 and 3 pi over 2, 1
and 2 pi, negative 1 g(x) x y −6 −11 −5 −6 −4 −3 −3 −2 −2 −3 −1 −6 0 −11 h(x) = 2 cos x + 1 Which function has the greatest maximum y-value?
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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>