When considering a confidence interval, remember PHANTOMS! Parameter: - p (the true proportion of) = _____ Hypotheses: H0 = _____ Ha = _____ Assess Conditions: Random - text says SRS Normal: Is np≥10andn(1−p)≥10 Yes or No? _____ Independent: It is fair to assume there are more than 4000 patients taking drug A Name: One-sample z-test for p Test Statistic: z = _____ Obtain your p-value (Use Desmos): p−value = Make a decision: Because our p-value is = _____ State your conclusion: _____
A drug company claims that less than 8% of patients who take drug A experience dizzy spells. To check this claim, scientists give the drug to a SRS of 400 patients. In all, 35 patients in the sample had dizzy spells. Test this claim at the 0.05 significance level.
When considering a confidence interval, remember PHANTOMS!
Parameter: - p (the true proportion of) = _____
Hypotheses: H0 = _____
Ha = _____
Assess Conditions: Random - text says SRS
Normal: Is np≥10andn(1−p)≥10
Yes or No? _____
Independent: It is fair to assume there are more than 4000 patients taking drug A
Name: One-sample z-test for p
Test Statistic: z = _____
Obtain your p-value (Use Desmos): p−value =
Make a decision: Because our p-value is = _____
State your conclusion: _____
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