Please do steps to test hypothesis and show all the steps and work. Thanks

3. Show your steps. Q1: The mean annual salaries of mechanical workers are normally distributed with the mean of $50,000 and a population standard deviation of $2,000. The mechanical engineer association wishes to study whether their workers earn more or less than $50,000 annually. A sample of 100 workers is drawn and the mean annual salary of the sample is $50,350. Assuming the significance level is 0.05, what conclusion should be obtained