IB skill practice

Use chi-square goodness of fit

Calculate a chi-square contribution or statistic from observed and expected counts.

Paper 1, Paper 2 5 marks Difficulty 3

Use chi-square goodness of fit - exam scenario

For one category in a training college goodness-of-fit test, observed count is 27 and expected count is 23. Calculate this category's chi-square contribution. Enter the requested value and choose the interpretation that matches the result.

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