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sjooff111
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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
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)
Level Count Probability Stderr Prob
N 250 .211 .0119
-----------
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)
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