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answerhappygod
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1. A corporation owns a chain of several hundred gasoline stations on the eastern seaboard. The marketing director wants to test a proposed marketing campaign by running ads on some local television stations and determining whether gasoline sales at a sample of the company's stations increase after the advertising. The following data represent gasoline sales for a day before and a day after the advertising campaign. Determine whether sales increased significantly after the advertising campaign. Use an alpha of 0.05. Station. Before After 1 10,500 12,600 8,870 10,660 12,300 11,890 10,510 14,630 5,570 8,580 9,150 10,115 11,980 14,350 6,740 6,900 7,340 8,890 13,400 16,540 12,200 11,300 10,570 13,330 9,880 9,990 12,100 14,050 9000 9,500 11,800 12,450 10500 13,450 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
1. A corporation owns a chain of several hundred gasoline stations on the eastern seaboard. The marketing director wants to test a proposed marketing campaign by running ads on some local television stations and determining whether gasoline sales at a sample of the company's stations increase after the advertising. The following data represent gasoline sales for a day before and a day after the advertising campaign. Determine whether sales increased significantly after the advertising campaign. Use an alpha of 0.05. Station. Before After 1 10,500 12,600 8,870 10,660 12,300 11,890 10,510 14,630 5,570 8,580 9,150 10,115 11,980 14,350 6,740 6,900 7,340 8,890 13,400 16,540 12,200 11,300 10,570 13,330 9,880 9,990 12,100 14,050 9000 9,500 11,800 12,450 10500 13,450 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17