6. (a) Show that in the simple linear regression setting, the usual F test statistic of Họ: B1 = 0 can be written as E- R°(n – 2) 1– Rª (b) In a simple linear regression with n = 300, how large must...

please answer 6b)

Extracted text: 6. (a) Show that in the simple linear regression setting, the usual F test statistic of Họ: B1 = 0 can be written as E- R°(n – 2) 1– Rª (b) In a simple linear regression with n = 300, how large must Rề be in order for there to be significant evidence against the null hypothesis from a), at the 5% significance level.