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SCORPION-xisa [38]
3 years ago
14

A leading medical journal claims that 68% of high school students experience anxiety just before an exam. A school counselor wan

ts to conduct a survey to verify this with the students in her school 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 counselor 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 ≥ 178
N ≥ 200
N ≥ 262
Mathematics
1 answer:
BigorU [14]3 years ago
5 0
The answer is N<span>≥ 178. I just had this question and that was right.</span>
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