1) Population mean symbol a) μ b) x̄ c) σ d) s 2) Population standard deviation symbol a) μ b) x̄ c) σ d) s 3) Sample mean symbol a) μ b) x̄ c) σ d) s 4) The television habits of children were observed and found out that the standard deviation is 12.4 hours per week. What is the population standard deviation  a) 12.4 b) 10.3 c) 8.1 d) 12.04 5) The study has a sample mean of 9.1 and a standard deviation of 2.1 conducted among 25 respondents. What test statistics should be used? a) t-test b) z-test c) Mean d) standard deviation

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