HW2_su2010 - Sociology 210 Winter 2010 Assignment 2 (due...

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Sociology 210 Winter 2010 Assignment 2 (due Wednesday, July 14 at beginning of lecture) 1. The Bureau of Labor Statistics recently released the December 2009 preliminary unemployment rates by state. The unemployment rates for 13 Midwest states are as follows: Illinois 11.1; Indiana 9.9; Iowa 6.6; Kansas 6.6; Kentucky 10.7; Michigan 14.6; Minnesota 7.4; Missouri 9.6; Nebraska 4.7; North Dakota 4.4; Ohio 10.9; South Dakota 4.7; and Wisconsin 8.7. A. Calculate the mean and the median of the Midwestern states using these rates. Also calculate the interquartile range and standard deviation. (Use the sample variance formula to compute variance and standard deviation.) B. Round each state’s rate to the nearest integer. Using the rounded rates, calculate Z Scores for each of the values that appear in the distribution. Use the national average unemployment rate, µ = 10.0 as your population mean for these calculations. Use the standard deviation of the Midwestern states (computed in A) as your estimate of σ, the population standard deviation. C.
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HW2_su2010 - Sociology 210 Winter 2010 Assignment 2 (due...

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