Almost all U.S. light-rail systems use electric cars that run ontracks built at street level. The Federal Transit Administrationclaims light-rail is one of the safest modes of travel, with anaccident rate of .99 accidents per million passenger miles ascompared to 2.29 for buses. The following data show the miles oftrack and the weekday ridership in thousands of passengers for sixlight-rail systems.

City	Miles of Track	Ridership (1000s)
Cleveland	17	16
Denver	19	36
Portland	40	82
Sacramento	23	32
San Diego	49	76
San Jose	33	31
St. Louis	36	43

1. Use these data to develop an estimated regression equation thatcould be used to predict the ridership given the miles oftrack.
   
   Compute b₀ and b₁ (to 2decimals).
   b₁
   b₀
   
   Complete the estimated regression equation (to 2 decimals).
   =  +  x
   
2. Compute the following (to 1 decimal):

   SSE
   SST
   SSR
   MSE

   
   
3. What is the coefficient of determination (to 3 decimals)? Note:report r² between 0 and 1.
   
   
   Does the estimated regression equation provide a good fit?
   SelectYes, it even provides an excellent fitYes, it provides a goodfitNo, it does not provide a good fitItem 10
   
4. Develop a 95% confidence interval for the mean weekdayridership for all light-rail systems with 30 miles of track (to 1decimal).
   (  ,  )
   
5. Suppose that Charlotte is considering construction of alight-rail system with 30 miles of track. Develop a 95% predictioninterval for the weekday ridership for the Charlotte system (to 1decimal).
   (  ,  )