4. Silicon Valley in California is one of the wealthiest regions. But the wealth in the area is not equal, The top 0.001% of Silicon Valley households hold more wealth than the bottom 50%. Not all people living in the area surrounding Silicon Valley work in tech positions. 20.21-22 6.47/7.07 1.79 .915 = -1.9563 a. An economist wants to test if the average hourly wage is less than $22 for non-tech positions in Silicon Valley. They consider a group of 50 individuals, with a sample mean of $20.21, and a sample standard deviation of $6.47. Ho: M > 22 H MZ 22 At a 5% significance level, conduct a hypothesis test to test the economist's claim that the average hourly wage is less than $22. Be sure to interpret your results and compare them to the economist's claim. Show or explain your thinking