Question 4 Two samples are taken with the following sample means, sizes, and standard deviations x1 = 39 12 = 26 n1 = 45 n2 = 54 $1 = 3 $2 = 2 Estimate the difference in population means using a 89% confidence level. Use a calculator or spreadsheet or other allowed technology, and do NOT pool the sample variances. Round answers to the nearest hundredth (2 decimal places).