A company is converting its overloaded computer system to a newer system and must rewritea large number ofcomputer programs for the new system.A sample of 10 programs are rewritten and the linear regression relation between number of man-hours required to rewrite a program (y) and the length of the program measured in number of statements (x) is estimated as = 2.3 + 0.060X.Other estimates obtained in the regression analysis are: The standard errorSe= 1.1,= 90, and SSXX= 10,000. Ninety-five percent confidence limits for the slopeb1of the regression function are:

1. 0.06+0.140
2. 0.06+0.025
3. 0.06+0.011
4. 0.06+2.540
5. 0.06+0.110