A concrete mix is designed to withstand 3000 pounds per square inch​ (psi) of pressure. The following data represent the strength of nine randomly selected casts​ (in psi).   3970​, 4100​, 3100​, 3200​, 2950​, 3820​, 4100​, 4050​, 3470      Compute the​ mean, median and mode strength of the concrete​ (in psi).

The table below has a total of 63 values.  Find the 8th decile for the following Grouped Frequency Data Table (GFDT).  Lower Class Limit Upper Class Limit Frequency 50 54 8 55 59 6 60 64 5 65 69 5 70 74 7 75 79 7 80 84 8 85 89 4 90 94 13 The 8th decile =

The table below has a total of 47 values.  Find the 9th decile for the following Grouped Frequency Data Table (GFDT).  Lower Class Limit Upper Class Limit Frequency 30 34 4 35 39 6 40 44 2 45 49 9 50 54 7 55 59 4 60 64 3 65 69 9 70 74 3 The 9th decile =

To determine if their 13 oz filling machine is properly adjusted, Smith Paints has decided to use an X-Chart which uses the range to estimate the variability in the sample. J. Step 1 of 7: What is the Center Line of the control chart? Round your answer to three decimal places. Period 1 2 day Select the Copy Table button to copy all values. To select an entire row or column, either click on the row or column header or use the Shift and arrow keys. To find the average of the selected cells, select the Average Values button. Copy Table Average Values The average of the selected cell(s) is 12.970. Copy Value 3 4 5 6 7 Table Control Chart 8 9 10 11 obs5 obs6 Sample Mean Sample Range 13.02 13.0050 12.97 12.98 13.04 13.04 13.01 13.01 13.03 12.95 12.96 13.05 12.98 12.9967 obs1 obs2 obs3 obs4 13.01 13.01 12.98 13.05 13.02 12.98 12.99 12.97 12.9983 12.98 13.01 13.02 12.96 13.03 13.04 13.0067 13.04 13.04 13.02 13.03 13.02 13.04 13.0317 12.99 12.96 13.03 12.95 12.97 13.05 12.9917 12.98 12.96 12.99…