A data set is given
a)
(a) Draw a scatter diagram. Comment on the type of relation thatappears to exist between x and y.
​(b) Given that
x overbarxequals=3.83333.8333​,
s Subscript xsxequals=2.40142.4014​,
y overbaryequals=3.98333.9833​,
s Subscript ysyequals=1.74521.7452​,
and
requals=negative 0.9457−0.9457​,
determine the​ least-squares regression line.
​(c) Graph the​ least-squares regression line on the scatterdiagram drawn in part​ (a).
| x | 0 | 2 | 4 | 5 | 6 | 6 |
| y | 6.0 | 5.8 | 4.7 | 3.0 | 2.1 | 2.3 |
