True or false: When computing the chi-square test statistic, a term is computed for each cell and all cell contributions are added together.
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What can we say about the value of the chi-square test statistic?
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Fill in the blank: The closer the observed counts are to their respective expected counts, the ________ the chi-square test statistic is.
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What distribution do we use to obtain a P-value for a chi-square test statistic?
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According to this outline, what are the degrees of freedom for a chi-square test statistic?
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What is the appropriate null hypothesis for this study?
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What is the name for the red values given in the two-way table?
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What do we assume when we compute expected counts?
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According to the expected counts given in blue in the two-way table, are they big enough for the test statistic to have an approximate chi-square distribution?
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True or false: There are six terms in this chi-square test statistic because there are six cells in the two-way table.
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In the degrees of freedom formula (r – 1)(c – 1), what does “r” represent?
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Why did we conclude that there is a relationship?
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Which cell correspond to the value of 16.83 in the test statistic?
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Since 22.5% is greater than 13.9%, can we conclude that more students smoke when both parents smoke than when neither parent smokes?
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