APPLY HYPOTHESIS TESTING
Researchers are interested in the mean age of a certain population. • A random sample of 10 individuals drawn from the population of interest has a mean of 27. Assuming that the population is approximately normally distributed with variance 20,can we conclude that the mean is different from 30 years ? (a=0.05). • If the p - value is 0.0340 how can we use it in making a decision?
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