You are a public health researcher.  You want to see if the average age that a person starts smoking has changed over time.  Smokers are recruited to answer a survey that asked at what age they started smoking.  You divided participants into two groups, one is participants under the age of 30 and the second for participants over the age of 30.  The average age for the two groups were compared. Which statistical test would be best to determine if there is a significant different in starting age between the two groups.     one-sample t-test     related samples t-test     independent samples t-test     ANOVA

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Q: You are a public health researcher. You want to see if the average age that a person starts smoking…

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A: b)

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