BONUS: Write the equation of both lines given below, and then determine if the lines are parallel, perpendicular, or neither. Choose the correct
answer below.
Line 1: (1, 2) and (3, 1)
Line 2: (2.0) and (0, -1)
Line 1: y = 1/2 x + 2.5, Line 2: y = -2 x+1, Perpendicular
O y 1
Line 1: y = 2x + 1, Line 2: y = 2x - 1, Parallel
Line 1: y = -1/2 x + 3, Line 2: y = 2x-1, Perpendicular
Line 1: y = -1/2 x + 2.5, Line 2: y = 1/2 x - 1, Neither

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