Julian Price

Mathematics

7 February, 10:57

A leading dental journal claims that 73% 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 ± 7%. What minimum sample size, rounded to the nearest whole person, does the hygienist need to use?

A.) N ≥ 161

B.) N ≥ 200

C.) N ≥ 322

D.) N ≥ 158