Question
Forty-nine (49) high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (GPA) was 2.7, and the standard
Forty-nine (49) high school freshmen were randomly selected for a national survey. Among survey participants, the mean grade-point average (GPA) was 2.7, and the standard deviation was 0.4. What is the margin of error, assuming a 95% confidence level.
(A) 0.050 (B) 0.057 (C) 0.975 (D) 2.011 (E) None of the above.
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Concise Pre Algebra Workbook
Authors: Josiah Coates
1st Edition
1724185152, 978-1724185150
