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A leading dental journal claims that 63% 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 ± 9%. What minimum sample size, rounded to the nearest whole person, does the hygienist need to use?
A N ≥ 127
B N ≥ 200
C N ≥ 230
D N ≥ 115
