In a survey of 703 randomly selected workers, 429 got their jobs through networking (based on data from Taylor Nelson Sofres Research).
a. Use the sample data with a 0.05 significance level to test the claim that most (more than 50% of) workers get their jobs through networking.
b. If given a claim that less than 50% of workers get their jobs through networking, why is it not necessary to go through the steps of conducting a formal hypothesis test? What should we conclude?