Mathematics, 14.05.2021 20:20 katherinemoreno353
A leading dental journal claims that 65% 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? (7 points)
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 ≥ 115
N ≥ 200
N ≥ 226
N ≥ 112
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A leading dental journal claims that 65% of young adults do not brush their teeth regularly. A denta...
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