Introduction to Biostatistical Applications in Health Research with Microsoft Office Excel and R by Hirsch Robert P.;

Author:Hirsch, Robert P.; [Hirsch, Robert P.]
Language: eng
Format: epub
Publisher: John Wiley & Sons, Incorporated
Published: 2021-03-09T00:00:00+00:00

9.10. Suppose we are interested in the number of immunizations necessary to provide protection against hepatitis B infections. To investigate this, we identify a group of persons in a population in which hepatitis B is endemic who had 0, 1, 2, 3, 4, or 5 immunizations and follow them for a period of 10 years. Imagine we observe the data in the Excel file EXR9_1 on the website accompanying this textbook. From these data, test the null hypothesis that the risk ratio comparing persons with no immunizations to persons with at least one immunization is equal to 1 in the population versus the alternative hypothesis that it is not equal to 1. If you allow a 5% chance of making a type I error, which of the following is the best conclusion to draw? Reject both null and alternative hypotheses

Accept both null and alternative hypotheses

Reject the null hypothesis and accept the alternative hypothesis

Accept the null hypothesis and reject the alternative hypothesis

It is best not to draw a conclusion about the null and alternative hypotheses from these data

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