Question
A researcher claims that 10% of all safety helmets have manufacturing flaws. To test this claim (H0: p = 0.10), a random sample of helmets
A researcher claims that 10% of all safety helmets have manufacturing flaws. To test this claim (H0: p = 0.10), a random sample of helmets was selected and the sample proportion of helmets with flaws calculated. After further calculations, a 95% confidence interval on the true proportion of helmets that have flaws was found to be (0.08, 0.13) and a decision was made about the claim of the true proportion of helmets with flaws. Using the same level of significance, which of the following p-values would lead to the same conclusion (same conclusion as reached with the confidence interval) about the claim H0: p = 0.10?
A. | 0.125 |
B. | 0.03 |
C. | 0.045 |
D. | 0.001 |
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