Question Help * For 50 randomly selected speed dates, attractiveness ratings by

Question

Question Help * For 50 randomly selected speed dates, attractiveness ratings by males of their female date partners (x) are recorded along with the atractivenes attractiveness range from 1 to 10. The 50 paired ratings yield x -6.3, y -6.1,r -0.267, y- 8.12-0325x. Find the best predicted value of y (attractiveness rating by female of male)for a date in which the ratings by females of their male date partners( the ratings attractiveness rating by the male of female is x:6. Use a 0.05 significance level. The best predicted value of y when x-6 is Round to one decimal place as needed.)

Explanation / Answer

This is a linear regression problem. We are given the linear regression equation already,

So, we are asked to find the value of y, when the value of x is equal to 6

To do this, we just need to substitute the value of x to the given linear regression equation. That is
y-cap=8.12-0.325(6) = 6.17   

Therefore, when the value of x is 6, the value of y is predicted to be about 6.17.

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