Consider the following data drawn independently from normally distributed populations: (You may find it useful to reference the appropriate table: z table or t table

X1 = -8.3 X2 = -17.5 N S2 2 S1 = 8.0 = 8.7 n1 E 18 n2 = 18a. Construct the 95% confidence interval for the difference between the population means. Assume the population variances are unknown but equal. (Round final answers to 2 decimal places.) Confidence interval is 7.24 to 11.16O HO: M1 - M2 = 0; HA: M1 - M2 # 0 O HO: M1 - M2 2 0; HA: M1 - H2 0O HO: M1 - M2 = 0; HA: M1 - M2 # 0 O HO: M1 - M2 2 0; HA: M1 - H2 0We conclude that population mean 1 is greater than population mean 2. We cannot conclude that population mean 1 is greater than population mean 2. We conclude that the population means differ. We cannot conclude that the POPU'atiO\" means differ