The data in TECHPRO.sav, obtained from Business Week's (June 22, 2006) technology section, represents typical salaries of technology professionals in 13 metropolitan areas for 2003 and 2005. Suppose you want to determine if the mean salary of technology professionals at all US. Metropolitan areas have increased between 2003 and 2005.

(a) Set up the null and alternative hypothesis for the test.

(f) Conduct the appropriate test and provide your conclusion. More specifically, I want you to examinewhether the null hypothesis should be rejected by analyzing the data with SPSS.