Chi-Square Goodness-of-Fit · College Statistics

College Statistics Quiz

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A researcher tests if a coin is fair (

H_0: p_{heads}=0.5

) by flipping it 80 times and getting 50 heads. This can be analyzed with a one-proportion z-test or a chi-square goodness-of-fit test. If the one-proportion z-test yields a statistic of

z = 2.236

, what will be the value of the chi-square statistic?

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