A random sample of 64 statistics students at a small college were given a surprise quiz out of 40 marks.The average score was 27 with a standard deviation of 5.Find a 95% confidence interval for the mean quiz score for all statistics students at this college.
A) (26.4,27.6)
B) (62.1,65.9)
C) (26.8,27.2)
D) (25.8,28.3)
E) (26.4,27.2)
Correct Answer:
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