A sample of teens Refer to Exercise 15. The sample mean x is an unbiased estimator of the population mean m no matter what size SRS the study chooses. Explain to someone who knows nothing about statistics why a large random sample will give more trustworthy results than a small random sample.

STAT 2004 WEEK 13 Central limit theorem- No matter the observation distribution, for a large n, x bar ~ N (mu, standard error.) (x bar follows a normal distribution) o This math won’t be tested, but the concept is important. T-distribution- Has more outliers. Handle problems the same way you would handle a normal distribution,...