The percentages of the workforce in unions and the percent- ages of worker hours lost due to strikes are compared by the scatterplot in Fig. 15 for the 50 states, except Alaska and Nebraska. Let U be the percentage of a state€™s workforce in unions and L be the percentage of the state€™s worker hours lost due to strikes.

a. Describe the four characteristics of the association.
b. Imagine the line that contains the two red dots, which rep- resent the data for West Virginia (left dot) and Louisiana (right dot). Or use a strand of thread, a stretched rubber band, or the edge of a clear ruler to form the line. Does the line appear to be a reasonable model? Explain.
c. Find an equation of the line that contains the two red dots.
d. In 2013, 23.2% of the Hawaiian workforce was in unions. For Hawaiians who worked 40 hours per week for 50 weeks per year, estimate the mean per-person number of hours lost due to strikes in 2013.
e. The data described by the scatterplot are for the period 1957€“1962. Do you have much faith in the result you found in part (d)? Explain.

Transcribed Image Text:

Percent in Unions versus Percent Hours Lost 3 0 10 2 304050 60 U Percentage of workforce in unions