Chi-squared variable

Flip a coin 100 times and record your observations: The expected results would be 50 heads up and 50 tails up. I flipped the coin 100 times and observed 60 heads up and 40 tails up. Calculate the chi-squared variable (X2) using the following equation. (Show your work) X^2= ? (Observed Value – Expected Value)^ 2 /Expected Value2.

Record the degrees of freedom. Determine the range of the p-value 4.Is the p-value greater or less than 0.05? Is there a statistically significant difference in the expected and observed results?

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