(Requires technology.) Examine the following data on U.S.

Chapter 2, Problem 2.11.18

(choose chapter or problem)

(Requires technology.) Examine the following data on U.S. union membership from 1930 to 2009. a. Using the table, describe the overall trends in the size of the labor force, in the number of union members, and in the percentage of the labor force that belongs to a union. b. Graph the percentage of the labor force in unions vs. time from 1950 to 2009. Measuring time in years since 1950, find a linear regression formula for these data using technology. c. When does your formula predict that only 10% of the labor force will be unionized? d. What data would you want to examine to understand why union membership is declining?

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