Here again are the boxplots showing the real estate values of single family homes in 2 neighboring cities (in thousands of dollars). The real estate values for single family homes in Tinytown and Bigburg are displayed horizontally in side-by-side boxplots. The income scale is from 0 to 240, measured in thousands of dollars. Tinytown has a minimum of about $65 thousand, the low end of the box is $90 thousand, the median is $150 thousand, the high end of the box is $180 thousand, and the maximum is $195 thousand. Bigburg has a minimum of about $20 thousand, the low end of the box is $60 thousand, the median is $150 thousand, the high end of the box is $180 thousand, and the maximum is $225 thousand.

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