You may need to use the appropriate appendix cable or technology to mayer this question. In order to estimate the difference between the average yearly incomes of marketing managers in the Cast and West of the United States, the following Information was gathered. Cast West 2 - 36 * =71 (in $1,000) *2 = 76 (in $1,000) $. = 6 [in $1,000) $ 8 (n $1,000) (a) Develop an interval estimate for the difference between the average yearly incomes of the marketing managers in the Cait and West. Use 98% confidence. (Use East - West. Round your anowers to three decimal places.) K to .1.225