D Question 8 3 pts Suppose it is known that the national average salary of an electrical engineer is 80,000 dollars. A sample of 64 electrical engineers in the local area have an average salary of 70,000 with the standard deviation of 25,000 dollars. At the level of significance 0.05, can one conclude that the average salary of electrical engineers in the local area is less than the national average? Assume that the salary of electrical engineers follows a normal distribution. Type in your decision. Use null and alternate hypotheses instead of typing Ho and Ha . Edit View Insert Format Tools Table