I need help solving the rest of this problem, both questions 2A and 2B. I have solved most of it but need help with the rest. Also, if anything i filled out is wrong please correct it.

The two samples below are independent from Normal populations with equal variances . Sample 1 : n = 18 EX = 384 ; E ( x x2 ) = 8 , 435 Sample 2:1 n = 13 EX = 226 { ( xx2 ) = 4 , 178 Question 2 A Test the hypothesis that HIS H 2 at a = 0 . 025 . State the hypothesis in terms of 1 - 2 . Step 1 : HO : HI - H 2 Ha : HI - H 2 Step 2 :1 I crit 2.045 Step 3 :1 Fill in row 8 8 if the hypothesis is one tailed ." Reject HO if\\ I stat 2. 045 Fill in row 92 if the hypothesis is two tailed . The smaller number must be typed first . Reject HO if* or Step 4:` I stat Step 5: HO Step 6 : HI - H Z Step 7 :1 Fill in the row 102 if the Z table is appropriate . P-value Fill in the row 106 if the + table is appropriate . The lower boundary must go on the left and the upper boundary on the right . P- value Question 2 B Construct a 90% confidence interval for the difference in population means . State the C.1 . in terms of 2 - 1 . Lower Endpoint Upper Endpoint