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chi-square = the sum of ((O - E)² / E)

Create a chi-square table in Excel using all three of your guesses (not one at a time) and see how good your guesses are:

1. Tell me what the chi-square number from your Excel sheet was. Please carry the number out at least 2 places past the decimal (value: 40 points). NOTE: If the number comes in Excel shows up with an "E" in it, like "6.96744E-04", this does not mean the number is 6.97. Rather the "E-04" means that the "696744" part starts 4 places past the decimal, so it is actually .000696744. This is a very small number.

2. Was it significant? In other words, was it less than or equal to 0.05?