Question: Five AC adaptors that are used to charge batteries of a cellular phone are taken from the production line each 15 min and tested for

Five AC adaptors that are used to charge batteries of a cellular phone are taken from the production line each 15 min and tested for their direct-current output voltage. The output voltages for 24 sample subgroups are as follows:

Subgroup 1 2 3 4 5 6 7 8 9 10 11

Plot the x̄ chart.

Subgroup 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Output Voltages of Five Adaptors 9.03 9.08 8.85 8.92 8.90 9.05 8.98 9.20 9.04 9.12 8.93 8.96 9.14 9.06 9.00 9.16 9.08 9.04 9.07 8.97 9.03 9.08 8.93 8.88 8.95 8.92 9.07 8.86 8.96 9.04 9.00 9.05 8.90 8.94 8.93 8.99 8.96 9.02 9.03 8.92 9.05 9.10 8.93 9.00 9.09 8.96 8.98 8.97 8.92 8.98 9.03 9.06 8.94 8.93 8.92 8.94 8.99 8.93 9.05 9.10 9.07 9.01 9.05 8.96 9.01 8.82 8.95 8.99 8.93 8.91 9.04 9.05 8.90 9.08 9.03 8.91 8.92 8.96 8.94 8.90 9.05 8.93 9.01 8.88 8.82 8.89 8.94 8.88 9.04 9.00 8.98 8.93 9.05 9.00 9.03 8.94 8.92 9.05 8.95 8.95 8.91 8.90 9.03 9.12 9.04 9.01 8.94 9.02 8.94 8.99 8.93 9.05 9.07 8.87 8.89 9.01 8.90 9.04 9.02 9.04

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To plot the x chart we first need to calculate the average output voltage for each subgroup of five adaptors The average output voltage for each subgroup can be calculated as follows Subgroup 1 903 90... View full answer

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