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January 31, 2015

January 31, 2015

Posted by **Winky** on Saturday, April 11, 2009 at 12:19am.

Answer:

2. Find the sample standard deviation.

Answer:

3. Find the test statistic.

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4. Find the P-value.

Answer:

5. Is the claim that a majority of the voters favor Smith supported at the 0.01 significance level? Enter 1 for yes, 0 for no.

Answer:

- Statistics PLEASE HELP -
**MathGuru**, Saturday, April 11, 2009 at 9:06amHere's a few hints.

1. To find the sample proportion of voters, use x/n. x = number who planned to vote for Smith. n = sample size. You can convert this to a decimal if asked to do so.

2. Sample standard deviation = √npq

n = sample size. p & q both equal .5 if no value is stated.

3. Use a z-test formula. You will need a population proportion or a population mean, which I don't see stated in the problem.

4. The p-value is the actual level of the test statistic, which can be found using a z-table.

5. If the p-value is greater than .01, the claim cannot be supported. If the p-value is less than .01, then the claim can be supported.

I hope this will help.

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