Researchers Vogel et al. (JAMA, 2006) reported the following findings about the Study of Tamoxifen and Raloxifene (STAR), a study involving postmenopausal women who were at an increased risk for invasive breast cancer. Of the

women randomly assigned to use tamoxifen daily,

developed invasive breast cancer sometime during the next five years, compared to

in the group of

who were randomly assigned to use raloxifene daily.

Organize the counts in a 2 x 2 table. Tamoxifen Raloxifene Total Developed cancer 161 175 336 No cancer 8801 9192 17993 Total 8962 9367 18329 e Textbook and Media * Your answer is incorrect. Round your answer to 4 decimal places, e.g. 0.0083. Find the observed difference in proportion of breast cancer cases between the tamoxifen and raloxifene users. difference = i 0.0003 e Textbook and Media