In Question 15, you found that the estimated Poisson regression model was log(/t = 8.67 + 0.049
Question:
/t = e€“8067 + 0.049(age)(8.14)
Then for the BGA location, we can estimate the cancer rate, (/t), for a given value of median age.
a. Estimate the mean number of cancer cases in BGA when the median age is 62. Use this model to estimate the cancer rate in BGA when the median age is 62. Find the estimated cancer incidence rate (recall that the cancer incidence rate is equal to the rate × 100,000). For median age equal to 62 years, t = 1682 for the BGA data.
b. Calculate the difference between the observed cancer incidence rate from Table 8.1 and your estimated cancer incidence rate. How do they compare?
Table 8.1 Cancer cases and cancer incidence rates (CIR) by age group for the Bartlett€“Green Acres neighborhood of Randolph (BGA), 1964€“1984, and similar data from the Connecticut Tumor Registry (CTR), 1980€“1984.
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Related Book For
Practicing Statistics Guided Investigations For The Second Course
ISBN: 9780321586018
1st Edition
Authors: Shonda Kuiper, Jeff Sklar
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