Problem Set #1

# Problem Set #1 - relationship, what does this mean? 3. Are...

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1. May 2010 Unemployment Rate, Selected States States California 12.4 Delaware 8.8 Kansas 6.5 Nevada 14.0 Ohio 10.7 Texas 8.3 Virginia 7.1 a. Calculate the mean. b. Calculate the standard deviation. Interpret in words what this means. c. Calculate the 95% confidence interval. Interpret in words what this means 2. Do women vote differently than men? Women Men Vote Obama 514 347 Vote McCain 387 322 a. Calculate the chi-square statistic showing all work b. Is there a statistically significant relationship between voting and gender? How do you know? If so, at what level and what does this mean? If there is not a

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Unformatted text preview: relationship, what does this mean? 3. Are older people more conservative than younger people? Sampl e Size Mea n Standard Deviation Standar d Error Youn g 69 3.80 1.32 .17 Old 58 3.71 1.40 .16 a. What is the null hypothesis? What is the alternative hypothesis? b. Perform a large-sample difference of means test where a (alpha)=0.01 Show all of your work c. Should you reject your null? Why or why not? What does this mean substantively?...
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## This note was uploaded on 09/21/2011 for the course POL 051 taught by Professor Unknown during the Summer '10 term at UC Davis.

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Problem Set #1 - relationship, what does this mean? 3. Are...

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