MS 150 Statistics Quiz 03 • Name:

Speed is time and time is money in the world of sewing. Faster machines mean faster completion times, more garments that can be sewed. Faster machines are also more expensive. The table includes the price versus the stitches per minute for a variety of basic sewing machines

Price (dollars)Stitches per minute
128750
3001100
7001500
8001600
10002500
  1. ______________ Calculate the slope of the linear regression for the data.
  2. ______________ Calculate the y-intercept of the linear regression for the data.
  3. ______________ Use the linear regression to predict the stitches per minute for a $450 sewing machine.
  4. ______________ Use the linear regression to predict the price for a 2000 stitch per minute machine.

Singer 4423 heavy duty sewing machine
Singer 4423 Heavy duty sewing machine capable of 1100 stitches per minute