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A developer wants to know if the houses in two different neighborhoods were built at roughly the same time. She takes a random sample of six houses from each neighborhood and finds their ages from local records. The accompanying table shows the data for each sample (in years). Complete parts a through e below. Click the icon to view the data table. a) Find the sample means for each neighborhood. y1 = years y2 = years X (Type integers or decimals.) Data table b) Find the estimated difference of the mean ages of the two neighborhoods, y, - y2- The estimated difference is |years. Neighborhood (Type an integer of a decimal.) 1 Neighborhood 2 68 43 c) Find the sample variances for each neighborhood. 51 32 56 35 62 40 64 39 53 51 (Type integers or decimals.) d) Find the sample standard deviations for each neighborhood. $1 = years Print Done $2 = years (Round to two decimal places as needed.) e) Find the standard error of the difference of the two sample means. SE (y1 - y2 ) = years (Round to two decimal places as needed.)