Widows A recent study indicated that 26% of the 171 women over age 55 in the study were widows. Round up your answers to the next whole number for the following questions. Part 1 of 2 How large a sample must you take to be 90% confident that the estimate Is within 0.02 of the true proportion of women over age $5 who are widows? 1310 Part: 1 / 2 Part 2 of 2 If no estimate of the sample proportion is available, how large should the sample be? X