In a survey of 225 art students 28% reported that their favorite color is blue. What is the margin of error for the sample?

a. 5%

b. 7%

c. 4%

Question

Mathematics

Harper Wang

3 September, 08:46

In a survey of 225 art students 28% reported that their favorite color is blue. What is the margin of error for the sample?

a. 5%

b. 7%

c. 4%

+3

Answers (1)

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Fitzpatrick · Answer 1

Margin of error is important in determining the probability as it gives realistic data for the distribution. The formula to be followed for margin of error is m% = z * sqrt (p * (1-p)) / n where p is the % positive outcome, n is the sample size and z * is a constant dependent to % confidence level. Substituting, m% = z * (0.03). Level of confidence is not given but assuming at95% CF, m% = 6%

In a survey of 225 art students 28% reported that their favorite color is blue. What is the margin of error for the sample?a. 5%b. 7%c. 4%

In a survey of 225 art students 28% reported that their favorite color is blue. What is the margin of error for the sample?

a. 5%

b. 7%

c. 4%