HW Score: 96.3%, 11.56 of 12 points Pa\" 7 f 8 9 Points: 0.67 of 1 A personnel director in a particular state claims that the mean annual income is the same in one of the state's counties Question list '6 (County A) as it is in another county (County B). In County A, a random sample of 18 residents has a mean annual income of $40,600 and a standard deviation of $8500. |n County B, a random sample of 8 residents has a mean annual income of $39,300 and a standard deviation of $5600. At or = 0.10, answer parts (a) through (e). Assume the population variances are not equal. Assume the samples are random and independent, and the populations are normally Question 6, 8.2.18-T Homework: Sec 8.2 distributed. l 0 Question 1 I 0 Question 2 -1.895, 1.895 3 (Type an integer 0r decimal rounded to three decimal places as needed. Use a comma to separate answers as needed.) Select the correct rejection region(s) below. I 0 Question3 V tt0 0 Question 4 _t0 tO I t to to 'tot0 l I test statistic. Fail to reject l |er or decimal rounded to three decimal places as needed.) Re'ect l J act or fail to reject the null hypothesis. ':| the null hypothesis. Help me solve this View an example Get more help A Clear all