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AP Statistics
Unit 6 – Proportions
Topic 6.11
A researcher is using a z-score to perform a significance test for the difference in two population proportions. The calculated z-score is -1.8. What can the researcher conclude?
Fail to reject the null hypothesis and conclude that the z-score does not represent an extremely rare value on the sampling distribution
Fail to reject the null hypothesis and conclude that there is no statistically significant difference between the two population proportions
Reject the null hypothesis and conclude that there is a statistically significant difference between the two population proportions
Reject the null hypothesis and conclude that the z-score represents an extremely rare value on the sampling distribution
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AP Statistics - 6.11 Carrying Out a Test for the Difference of Two Population Proportions
Key terms
Population Proportions
Significance Test
Z-Score
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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
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