Given the sample data. x: XXXXXXXXXX (a) Find the range. (b) Verify that Σ x = 108 and Σ x 2 = 2,528. (c) Use the results of part (b) and appropriate computation formulas to compute the sample...

Given the sample data.

x: 21 17 13 30 27

(a) Find the range.

(b) Verify that Σx
= 108 and Σx
²
= 2,528.

(c) Use the results of part (b) and appropriate computation formulas to compute the sample variance
s
²
and sample standard deviation
s. (Round your answers to two decimal places.)

(d) Use the defining formulas to compute the sample variance
s
²
and sample standard deviation
s. (Round your answers to two decimal places.)

(e) Suppose the given data comprise the entire population of all
x
values. Compute the population variance ?²
and population standard deviation ?. (Round your answers to two decimal places.)

Extracted text: Given the sample data. x: 21 17 13 30 27 (a) Find the range. (b) Verify that Ex = 108 and Ex² = 2,528. Σχ= Ex2 = (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 s? 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 o? and population standard deviation o. (Round your answers to two decimal places.) g2 = O =