A survey is being conducted of voters’ opinions on several different issues.

(i) What is the overall margin of error of the survey, at 95% confidence, if it is based on a

simple random sample of 1111 voters.

(B) A political party had claimed that it has the support of 23% of the electorate. Of the

voters in the sample above, 234 stated that they support the party. Is this sufficient

evidence to reject the party’s claim, at the 5% level of significance?

does anyone know how to work this out. i can do the first part easy its 1/√1111 i dont know how to do the second part b

## statistics

**Moderators:** gmalivuk, Moderators General, Prelates

### Re: statistics

Maybe you should ask the teacher who posed you this question for some advice, instead of asking us to do your homework?

Mighty Jalapeno: "See, Zohar agrees, and he's nice to people."

SecondTalon: "Still better looking than Jesus."

Not how I say my name

SecondTalon: "Still better looking than Jesus."

Not how I say my name

### Re: statistics

Why is that the correct value for part (a)?

What does margin of error mean? What does the poll say the actual percentage is? What is the 5% level of significance?

What does margin of error mean? What does the poll say the actual percentage is? What is the 5% level of significance?

(∫|p|

Thanks, skeptical scientist, for knowing symbols and giving them to me.

^{2})(∫|q|^{2}) ≥ (∫|pq|)^{2}Thanks, skeptical scientist, for knowing symbols and giving them to me.

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