please help this probability and statistics questions with clear steps and explanation, thankssss

In one country, govemment provides nancial incentives to companies to increase the number of female Chief Executive Ofcers (0305). As the result, several companies now have female CEOs. A researcher decided to examine the success of female CEOs of the companies by comparing their base salaries (excluding bonuses and outliers) with those of their male counterparts. She took a random sample of 100 female and 100 male CEOs and recorded their salaries for the preceding year. The average salary of the female CEOs was $402,500 and for the male CEOs was $430,000, with a standard deviation of $1000 each. Assuming that the CEO incomes are normally distributed for both females and males and that their population variances are equal. At the 5% signicance, is there enough evidence to support the claim that average salaries of female CEOs are lower than average salaries of male CEOs of the companies? Answer Questions 10-12 below. Question 10: (1 Mark) State the null and alternative h 1- otheses. Question 11: (1 Mark) Find the value of the test statistics. Question 12: {1 Mark) Indicate the rejection region and state the conclusion