Aleading dental journal claims that 68% of young adults do not brush their teeth regularly. a dental hygienist wants to conduct a survey to verify this with her young adult patients, and wants to do so with a margin of error (me) of ± 5%. what minimum sample size, rounded to the nearest whole person, does the hygienist need to use? hint: me equals plus or minus two times square root of start fraction p hat left parenthesis one minus p hat right parenthesis over n end fraction end square root, where p hat is the yes proportion in the sample and n is the sample size n ≥ 175 n ≥ 348 n ≥ 366 n ≥ 400