This data set of sizen= 15 contains measurements of yield from an experiment done at five different temperature levels. The variables arey= yield andx= temperature in degrees Fahrenheit. The table below gives the data used for this analysis. Find the polynomial regression equation.

n	x	y
1	50	3.3
2	50	2.8
3	50	2.9
4	70	2.3
5	70	2.6
6	70	2.1
7	80	2.5
8	80	2.9
9	80	2.4
10	90	3.0
11	90	3.1
12	90	2.8
13	100	3.3
14	100	3.5
15	100	3.0

With computations please