Researchers have reported that the incidence rate of cataracts may be elevated among people with excessive expo- sure to sunlight. To confirm this, a pilot study is conducted among 200 people ages 65–69 who report an excessive tendency to burn on exposure to sunlight. Of the 200 peo- ple, 4 develop cataracts over a 1-year period. Suppose the expected incidence rate of cataracts among 65- to 69-year- olds is 1% over a 1-year period. Problem a)  What test procedure can be used to compare the 1-year rate of cataracts in this population with that in the general population? Problem b) Implement the test procedure in Problem a, and report a p-value (two-sided).

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Researchers have reported that the incidence rate of cataracts may be elevated among people with excessive expo- sure to sunlight. To confirm this, a pilot study is conducted among 200 people ages 65–69 who report an excessive tendency to burn on exposure to sunlight. Of the 200 peo-
ple, 4 develop cataracts over a 1-year period. Suppose the expected incidence rate of cataracts among 65- to 69-year- olds is 1% over a 1-year period.

Problem a)  What test procedure can be used to compare the
1-year rate of cataracts in this population with that in the
general population?
Problem b) Implement the test procedure in Problem a, and
report a p-value (two-sided).

 

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