'Construct the confidence interval for P1 P2 for the level of confidence and the data given: (The samples are sufficiently large ) 99%0 confidence n[ 2250. P1 =0.915 n2 2525 p2 0.858 b 95% confidence = 120 P1 # 0.650 200 p2 0.505'
Added by Kevin D.
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p̂1 = 0.915 p̂2 = 0.858 p̂1 - p̂2 = 0.915 - 0.858 = 0.057 Show more…
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Construct the confidence interval for $p_{1}-p_{2}$ for the level of confidence and the data given. (The samples are sufficiently large.) a. $80 \%$ confidence, $$ \begin{array}{l} \mathbf{n}_{1}-300, \hat{p}_{1}-0.255 \\ \approx_{2}-400, \hat{p}_{2}-0.1 Q 3 \end{array} $$ b. $95 \%$ confidence, $$ \mathrm{w}_{1}-3500, \hat{p}_{1}-0.147 $$ $$ \mathrm{w}_{2}-3750, \hat{p}_{2}-0.131 $$
Two-Sample Problems
Comparison of Two Population Proportions
Calculate the confidence interval to estimate the population proportion for each of the following. a. $98 \%$ confidence level; $n=450 ; \hat{p}=0.10$ b. $95 \%$ confidence level; $n=240 ; \hat{p}=0.01$. c. $\alpha=0.04 ; n=265 ; \hat{p}=0.50$
Construct a 95% confidence interval for p1 - p2. Assume the samples are random and independent. Sample statistics: n1 = 50, x1 = 35, and n2 = 60, x2 = 40
Sri K.
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