Run a regression analysis on the following bivariate set of data with y as the response variable.

x	y
30	-10.7
57.1	63.4
68.3	99.2
62.6	108.8
47.1	48.3
47.4	30.8
22.3	-32
40	17.4
27.2	-7.1
60.4	35.1
34.7	2.1
51.8	49.5
35.4	14.2
45.4	30.4
33.8	28.2
48.6	30.1
60.6	82.5

Predict what value (on average) for the response variable will be obtained from a value of 20.5 as the explanatory variable. Use a significance level of $\displaystyle \alpha={0.05}$ to assess the strength of the linear correlation.

What is the predicted response value?
y =

(Report answer accurate to one decimal place.)