A medical research team wanted to perform a statistical inference procedure to see if there is a difference in the proportion of people that report headache pain relief within 30 minutes of taking either acetaminophen or ibuprofen. Volunteers that suffer from regular headaches were split into tu groups: one who took acetaminophen at the onset of a headache and one group that took ibuprofen The proportion of those that reported relief within 30 minutes were counted and a 95% confidence interval for the true difference in proportion of pain relief was calculated. The interval was (-0.125, 0.083). Does this interval show evidence that there is a difference between the two medications? No; without knowing the sample size, no conclusion can be made. В No; since o is included in the interval, there is no evidence of a difference. C Yes; since o is included in the interval, there is proof of a difference. Yes; the interval shows that there is a difference since the values are more than 5%.

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A medical research team wanted to perform a statistical inference procedure to see if there is a
difference in the proportion of people that report headache pain relief within 30 minutes of taking
either acetaminophen or ibuprofen. Volunteers that suffer from regular headaches were split into two
groups: one who took acetaminophen at the onset of a headache and one group that took ibuprofen.
The proportion of those that reported relief within 30 minutes were counted and a 95% confidence
interval for the true difference in proportion of pain relief was calculated. The interval was (-o.125,
0.083).
Does this interval show evidence that there is a difference between the two medications?
А
No; without knowing the sample size, no conclusion can be made.
В
No; since o is included in the interval, there is no evidence of a difference.
C
Yes; since o is included in the interval, there is proof of a difference.
Yes; the interval shows that there is a difference since the values are more than 5%.
Transcribed Image Text:A medical research team wanted to perform a statistical inference procedure to see if there is a difference in the proportion of people that report headache pain relief within 30 minutes of taking either acetaminophen or ibuprofen. Volunteers that suffer from regular headaches were split into two groups: one who took acetaminophen at the onset of a headache and one group that took ibuprofen. The proportion of those that reported relief within 30 minutes were counted and a 95% confidence interval for the true difference in proportion of pain relief was calculated. The interval was (-o.125, 0.083). Does this interval show evidence that there is a difference between the two medications? А No; without knowing the sample size, no conclusion can be made. В No; since o is included in the interval, there is no evidence of a difference. C Yes; since o is included in the interval, there is proof of a difference. Yes; the interval shows that there is a difference since the values are more than 5%.
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