You may need to use the appropriate appendix table or technologyf to answer this question. Recall the method used to obtain a condence interval for the difference between two population means for matched samples. [a] The following data are from matched samples taken from two populations. Compute the difference value for each element. (Use Population 1 Population 2.) Population Element 1 2 Differenm 1 1]. 8 2 7 8 3 9 6 4 12 7 5 13 10 6 15 15 7 15 14 (b) Compute E. :l [c] Compute the standard deviation 50.. {Round your answer to two decimal places.) : (d) what is the point estimate of the difference between the two population means? (Use Population 1 Population 2.) : (e) Provide a 95% condence interval for the difference between the two population means. (Use Population 1 Population 2. Round your answers to two decimal places.) :lto|:|