A Student Wanted to Construct a 95% Confidence Interval for the Mean

question 52

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 average age was 19.1 years with a sample standard deviation of 1.5 years. What is the best point estimate for the population mean?

• A)2.1 years
• B)1.5 years
• C)19.1 years
• D)9 years

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