ample of 12 kids, their mean time on the internet on the phone was 3.9 hours with a sample standard

deviation of 0.7 hours. Which distribution would be most appropriate to use?

z distribution as the standard deviation always represents the population

t distribution as the data are assumed to be normally distributed

Neither z nor t, as the population is not known to be normally distributed and there is a small sample

t distribution as the population is not normally distributed

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