For 50 randomly selected speeddates, attractiveness ratings by males of their female date partners(x) are recorded along with the attractiveness ratings by females of their male date partners(y); the ratings range from 1 to 10. The 50 paired ratings yield x=6.4, y=6.0, r=0.283, P-value=0.046, and

y=8.210.344x. Find the best predicted value of

y (attractiveness rating by female ofmale) for a date in which the attractiveness rating by the male of the female is x=9. Use a 0.10 significance level.

The best predicted value of y when x=9 is