**1. Polotical parties rely heavily upon polling to measure their supports in the electorate. Below are the results of a poll conducted in 1996 for four (i only listed the one needed) political parties.**

Level Count Probability Stderr Prob

N 250 .211 .0119

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Total 1193

4 levels

Level Count Probability Stderr Prob

N 250 .211 .0119

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Total 1193

4 levels

**2. Construct and interpret a 95% confidence interval for the level of support for the N Party in 1996**

I only know how to do confidence intervals when a mean ans standard deviation is given using the formula : Mean+- Z*(Sq rt(sx/n)I only know how to do confidence intervals when a mean ans standard deviation is given using the formula : Mean+- Z*(Sq rt(sx/n)

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