A random sample of 10 mathematics dictionaries had an average price of $17.50 with a sample standard deviation of $3.85. Find the 95% confidence interval for µ, the population mean price of all mathematics dictionaries.
Answer
A. (14.64, 20.36)
B. (14.98, 20.02)
C. (14.34, 20.66)
D. (14.75, 20.25)