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OpenStudy (anonymous):
Does anybody have the answers to these questions? 1. Sherry missed the lesson on normal distribution and needs to do her homework. Explain to Sherry how to use the mean and standard deviation of a normal distribution to determine the top 7% of the population. 2.Alan wants to conduct an experiment to determine whether a new medication is effective in reducing coughing. Explain to Alan the best sampling method, what statistics he should study, and what conclusions he can draw from the experiment.
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