An epidemiologist is investing a foodborne outbreak and want

An epidemiologist is investing a foodborne outbreak and wants to determine the relative odds of a diagnosis of salmonellosis for those who ate ice cream and those who did not. Her investigation produced the following contingency table. Construct a 95% confidence interval for the relative odds. Use it to determine if ice cream consumption and a diagnosis of salmonellosis are associated. Your answer must include a point estimate, standard error, and upper and lower boundaries. Provide your answers in the table below. All numeric values must be rounded to the nearest hundredth. Note that in this case, a confidence interval that includes zero (0) is evidence of independence.

Diagnosis of salmonellosis

Ice cream eaten

Yes

No

Yes

10

13

No

17

45

Answer

Point estimate

Standard error

Lower boundary

Upper boundary

Conclusion

Solution

point estimate 1.586

Standard error   0.315

Lower boundary 0.855

Upper boundary 2.940

conclusion: we can notice that the point estimate is well inside the confidence interval.