Relative Risk of Cholera, drinking water from Companies 1 & 2, & rest of City X

Raja

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Relative Risk of Cholera, drinking water from Companies 1 & 2, & rest of City X

Problem 3. Health: Relative risk

City X Cholera Deaths
Water CompanyNumber of HousesCholera Cases
Company 1400461263
Company 22610798
Rest of City2564231422

Test the following hypotheses.

1. That the risk associated with drinking water from Company 1 is the same as that from the whole city in general.

2. That the risk associated with drinking water from Company 2 is the same as that for the rest of the city.

3. Calculate the relative risk of getting water from Companies 1 and 2. (Critical Z values for accepting hypotheses are -3.9 to +3.0)
 

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Problem 3. Health: Relative risk

City X Cholera Deaths
Water CompanyNumber of HousesCholera Cases
Company 1400461263
Company 22610798
Rest of City2564231422

Test the following hypotheses.

1. That the risk associated with drinking water from Company 1 is the same as that from the whole city in general.

2. That the risk associated with drinking water from Company 2 is the same as that for the rest of the city.

3. Calculate the relative risk of getting water from Companies 1 and 2. (Critical Z values for accepting hypotheses are -3.9 to +3.0)
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