A study examined the decay properties of sandstone when exposed to the weather. In the study, slices of sandstone blocks were tested for permeability under three conditions: no exposure to any type of weathering (A), repeatedly sprayed with 10% salt solution (B), and soaked in a 10% salt solution and dried (C). Measures of variation for the permeability measurements (mV) of each sandstone group are displayed in the accompanying technology printout. Complete parts a through c. Descriptive Statistics: PermA, PermB, Perm Variable N StDev Variance PermA 100 14.99 224.84 PermB 100 22.22 493.62 Permc 100 19.53 381.34 Minimum 56.10 50.60 52.80 Maximum 123.70 152.40 128.10 Range 67.60 101.80 75.30 a. Find the range of the permeability measurements for Group A sandstone slices. Verify its value using the minimum and maximum values shown on the printout and the maximum is The range given in the technology output According to the technology output, the range is the minimum is the result found with the range formula, Range = (Type integers or decimals. Do not round.) b. Find the standard deviation of the permeability measurements for Group A sandstone slices. Verify its value using the variance shown on the printout. According to the technology output, the standard deviation is and the variance is the result found with the formula Standard Deviation = (Type integers or decimals. Do not round.) The standard deviation given in the technology output rounded to two decimal places. c. Which condition (A, B, or C) has the more variable permeability data? Condition V has the more variable permeability data because it has the value(s) of