Please help me understand this better.

A personnel director in a particular state claims that the mean annual income is greater in one of the state's counties (County A) than it is in another county (County B). In County A, a random sample of 17 residents has a mean annual income of $40,600 and a standard deviation of $8800. In County B, a random sample of 8 residents has a mean annual income of $39,800 and a standard deviation of $5100. At oz 2 0.05, can you support the personnel director's claim? Assume the variances are not equal and assume the samples are random, independent, and normally distributed. What is the claim? Choose the correct answer below. 0 The mean annual income in CountyA is less than the annual income in County B. O The mean annual income for CountyA and County B are not equal. 0 The mean annual income for CountyA and County B are equal. 0 The mean annual income in CountyA is greater than the annual income in County B. Write the claim mathematically and identify the Ho and H3. Choose the correct answer below. 0 Ho: #1 75 H2 Ha: #1 = #2 (claim) 0 Ho: #1 S #2 (claim) Ha: #1 > [12 0 Ho: I41 75 #2 (claim) Ha: \"I = \"'2 0 H01 #1 S #2 Ha: [1.1 > #2 (claim) 0 Ho: #1 2 #2 Ha: pd