A student wanted to construct a 95 confidence interval for

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A student wanted to construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 12 students. Their average age was 20.7 years with a standard deviation of 1.2 years. What is the best point estimate for the population mean?

a. 2.2 years

b. 20.7 years

c. 1.2 years

d. 12 years

Reference no: EM13634859

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