Re: DSE 2013 Paper Discussion

Posted by neha:) on May 20, 2014; 9:04am
URL: http://discussion-forum.276.s1.nabble.com/DSE-2013-Paper-Discussion-tp7584703p7590248.html

Q. 12) A population is growing at the instantaneous growth rate of 1.5 per cent. The time taken (in years) for it to double is approximately
(a) log2/0.15
(b) log2/15
(c) log2/.015
(d) log2/1.5

Q.13) A linear regression model y =  a +bX + e is estimated using OLS. It turns out that the estimated B^ (B hat) equals zero. This implies that:
(a) R square is zero
(b) R square is one
(c) 0 < R square < 1
(d) In this case the R square is undefined