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Degrees of freedom = n -1 Degrees of freedom = 2-1=1 Probability (from Table 3.4) .1 < P< .5

The probability associated with the calculated chi-square value is between .10 and .50, indicating a high probability that the difference between observed and expected values is due to chance.

Conclusion: No significant difference between observed and expected values.

3.15 A chi-square test is used to determine the probability that the difference between observed and expected values is due to chance.

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