Business organizations are relying more and more on social media to search job candidates. According to one survey, 70% of employers use social media sites to screen job candidates during hiring process. A random sample of 160 firms found that 103 of them use social media sites to screen candidates during the hiring process. Test the hypothesis that less than 70% of organizations use social media to screen job candidates during the hiring process with = 0.01.

use the critical value approach to test this hypothesis

use the p-value approach to test this hypothesis