Multiple Choice
A student wanted to construct a 95% confidence interval for the mean age of students in her statistics class. She randomly selected nine students. Their mean age was 19.1 years,with a sample standard deviation of 1.5 years. What is the 95% confidence interval for the population mean?
A) [0.97,3.27]
B) [15.64,22.56]
C) [17.97,20.23]
D) [17.95,20.25]
Correct Answer:
Verified
Correct Answer:
Verified
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