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8. Sampling Distributions & Confidence Intervals: Proportion

Chi Square Distribution

8. Sampling Distributions & Confidence Intervals: Proportion

Chi Square Distribution

Multiple Choice
In a chi-square test, the test statistic can be written as $X = \sum \frac{{(O_{i} - E_{i})}^{2}}{E_{i}}$ . When will this chi-square statistic equal $0$ ?
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Multiple Choice
Use a table to find or estimate $χ^{2}$ such that:
$P (X^{2} > χ^{2}) = 0.010$ (Area to the right)
$d f = 50$
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Multiple Choice
Use a table to find or estimate $χ^{2}$ such that:
$P (X^{2} < χ^{2}) = 0.010$ (Area to the left)
$d f = 50$
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Multiple Choice
Find the left and right $χ^{2}$ -values for a 99% confidence interval with a sample size of 25.
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