Chapter 6

Exercise: 6.4

Also:

1. The web site here has a table with the results from the lottery for the 1970 draft. Each day of the year was assigned a draft number and eligible males were drafted in the order of their birth dates. Fit a least squares line to the data and plot the line with the scatterplot of the data. Does the line indicate any trend?
2. Young's modulus is a measurement of the stiffness of an elastic material. The following table lists observed values of Young's modulus for sapphire rods measured at various temperature (in degrees Kelvin):

Fit a least squares line to the data and plot the line with the scatterplot of the data.