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 - X Data table y2 = years (Type integers or decimals.) b) Find the estimated difference of the mean ages of the two neighborhoods, y, - y2 Neighborhood 1 Neighborhood 2 The estimated difference is |years. 48 46 (Type an integer or a decimal.) 63 32 68 38 c) Find the sample variances for each neighborhood. 62 33 53 43 54 60 (Type integers or decimals.) d) Find the sample standard deviations for each neighborhood. Print Done $1 = years $2 = years (Round to two decimal places as needed.) e) Find the standard error of the difference of the two sample means. SE (y1 - 72) = years Round to two decimal places as needed.)