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# Poll

A pollster conducted a survy of voters' opinions on a local school bond issue. What would the 95 percent confidence limits be if 53 percent of 1000 people sampled were in favor of the school bond issue? What would the 99 percent confidence limits be for the same sample?

I have SPSS 11.0 here. Can I enter this info into it and get the data? If not, how do I do this by hand?

#### Solution Preview

You don't need software for this question, a manual calculation will be enough.
<br>The sample number is N=1000, expected proportion is p=53/1000=0.053
<br>Then standard error is:
<br>SD = ...

#### Solution Summary

A pollster conducted a survey of voters' opinions on a local school bond issue. What would the 95 percent confidence limits be if 53 percent of 1000 people sampled were in favor of the school bond issue? What would the 99 percent confidence limits be for the same sample?

I have SPSS 11.0 here. Can I enter this info into it and get the data? If not, how do I do this by hand?

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