PRACTICE ANOTHER Given the sample data. x: 23 19 13 32 25 (a) Find the range. (b) Verify that Σx = 112 and Σx2 = 2,708. Σx = Σx2 = (c) Use the results of part (b) and appropriate computation formulas to compute the sample variance s2 and sample standard deviation s. (Round your answers to two decimal places.) s2 = s = (d) Use the defining formulas to compute the sample variance s2 and sample standard deviation s. (Round your answers to two decimal places.) s2 = s = (e) Suppose the given data comprise the entire population of all x values. Compute the population variance σ2 and population standard deviation σ. (Round your answers to two decimal places.) σ2 = σ =