1on : of 5 points)
The table shows the minimum wage rates for the United States during different years.
1.
Year
1978
1979
1980
1990
1991
1996
1997 2007
Minimum hourly wage ($) 2.65
2.90
3.35
3.80
4.25
4.75
5.15
5.85
(a) Write the least squares regression equation that models the data. Let x = time
1900 and let y = minimum hourly wage.
(b) Use the equation to estimate the minimum hourly wage of a U. S. worker in 20
work.