In a study of college search behaviors among the families of college-bound high school students, the search behaviors are very different from family to family. In the situation described, which guideline below best explains why the researcher will use a larger sample size? Multiple Choice The greater the desired precision of the estimate, the larger the sample should be. The greater the variance within the population, the larger the sample should be. O The greater the number of subgroups of interest within a sample, the larger the sample must be O The higher the level of confidence in the estimate, the larger the sample must be. O The smaller the error range, the larger the sample must be