Plz 1. 8x = 26 - 5x 2. 11x - x + 33 = 12x + x 3. 3x + 7 = -2x + 32 4. 11x - 4 = 4x + 38 5. -x + 1 = 8x - 62 6. 4x - 2x + 16 = 11 - 8x + x - 40 7. -x + 5x - 3 + 8 = -x - 2x - 2 8. 5(x-1) + 2x - 15 = 2x + 15 9. x + 5 = 2x + 2(4x - 2) 10. -(7x - 4) - 9x - 5 = 12 - x + 32 11. 5x - 12 = 2x - 6(2x - 3)

Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10