Apply single linkage cluster analysis to the first five records in the Excel file Sales Data, using the variables Percent Gross Profit, Industry Code, and Competitive Rating.

1 1 1 1 1 Sales Data 2 3 Customer Percent Gross Prot Gross Sales Gross Profi Industry Code Competitive Rating* 4 51.0% $170.00 $86.70 2 5 2 32.0% $181.00 $57.92 3 4 6 3 20.0% $203.00 $40.60 2 2 7 4 22.0% $249.00 $54.78 5 8 5 21.0% $476.00 $99.96 5 9 6 21.0% $476.00 $99.96 5 4 10 7 22.0% $635.00 $139.70 2 3 11 8 34.0% $856.00 $291.04 3 3 12 9 26.0% $1,062.00 $276.12 4 2 13 10 16.6% $1,110.00 $183.71 7 3 14 11 20.0% $1,153.00 $230.60 7 3 15 12 36.0% $1,392.00 $501.12 4 2 16 13 18.0% $1,743.00 $313.74 4 2 17 14 20.0% $2,307.00 $461.40 7 3 18 15 5.0% $2,534.00 $126.70 4 5 19 16 29.0% $2,683.00 $778.07 7 2 20 17 10.0% $2,780.00 $278.00 2 3 21 18 37.0% $3,272.00 $1,210.64 5 3 22 19 60.0% $3,864.00 $2,318.40 7 23 20 24.0% $3,988.00 $957.12 6 3 24 21 9.0% $4,072.00 $366.48 7 3 25 22 50.0% $4,190.00 $2,095.00 5 3 26 23 17.0% $4,219.00 $717.23 3 4 1 1 1 1 1 Sales Data 2 3 Customer Percent Gross Prot Gross Sales Gross Profi Industry Code Competitive Rating* 4 51.0% $170.00 $86.70 2 5 2 32.0% $181.00 $57.92 3 4 6 3 20.0% $203.00 $40.60 2 2 7 4 22.0% $249.00 $54.78 5 8 5 21.0% $476.00 $99.96 5 9 6 21.0% $476.00 $99.96 5 4 10 7 22.0% $635.00 $139.70 2 3 11 8 34.0% $856.00 $291.04 3 3 12 9 26.0% $1,062.00 $276.12 4 2 13 10 16.6% $1,110.00 $183.71 7 3 14 11 20.0% $1,153.00 $230.60 7 3 15 12 36.0% $1,392.00 $501.12 4 2 16 13 18.0% $1,743.00 $313.74 4 2 17 14 20.0% $2,307.00 $461.40 7 3 18 15 5.0% $2,534.00 $126.70 4 5 19 16 29.0% $2,683.00 $778.07 7 2 20 17 10.0% $2,780.00 $278.00 2 3 21 18 37.0% $3,272.00 $1,210.64 5 3 22 19 60.0% $3,864.00 $2,318.40 7 23 20 24.0% $3,988.00 $957.12 6 3 24 21 9.0% $4,072.00 $366.48 7 3 25 22 50.0% $4,190.00 $2,095.00 5 3 26 23 17.0% $4,219.00 $717.23 3 4