The herb ginkgo biloba is commonly used as a treatment to prevent dementia. In a study of the effectiveness of this treatment, 1545 elderly subjects were given ginkgo and 1524 were given a placebo. Among those in the ginkgo treatment group, 246 later developed dementia, and among those in the placebo, 277 later developed dementia. You will be construction a 99% confidence interval estimate of the difference between the proportion of subjects that developed dementia who received ginkgo and those who did not. Please fill in the blank and answer questions below using the prompt above. The right hand critical value is . Round to 3 decimal places. The margin of error, Round to 3 decimal places is Construct the 99% confidence interval estimate of the true difference between the proportion of subjects who get dementia who received ginkgo and those who did not. Round your answers to 3 decimal places. ________ < population difference in proportion < ________ Does ginkgo appear to reduce dementia? Explain using statistics.
The herb ginkgo biloba is commonly used as a treatment to prevent dementia. In a study of the effectiveness of this treatment, 1545 elderly subjects were given ginkgo and 1524 were given a placebo. Among those in the ginkgo treatment group, 246 later developed dementia, and among those in the placebo, 277 later developed dementia. You will be construction a 99% confidence
Please fill in the blank and answer questions below using the prompt above.
The right hand critical value is . Round to 3 decimal places.
The margin of error, Round to 3 decimal places is
Construct the 99% confidence interval estimate of the true difference between the proportion of subjects who get dementia who received ginkgo and those who did not. Round your answers to 3 decimal places.
________ < population difference in proportion < ________
Does ginkgo appear to reduce dementia? Explain using statistics.
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