The amount of sodium(in milligrams) in one serving for a random sample of three different kinds of foods is listed here. At the 0.05 level of significance, is there sufficient evidence to conclude...

The amount of sodium(in milligrams) in one serving for a random sample of three different kinds of foods is listed here. At the 0.05 level of significance, is there sufficient evidence to conclude that a difference in mean sodium amounts exists among condiments, cereals, and desserts?

Extracted text: The amount of sodium(in milligrams) in one serving for a random sample of three different kinds of foods is listed here. At the 0.05 level of significance, is there sufficient evidence to conclude that a difference in mean sodium amounts exists among condiments, cereals, and desserts? Required: Find the within group variance. Only the final answer should be rounded-off to TWO decimal places. Condiments Cereals Desserts 270 260 100 130 220 180 230 290 250 180 290 250 80 200 300 70 320 360 184 154 300 167