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A researcher collects a simple random sample of grade point averages of statistics students and...

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Statistics

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A researcher collects a simple random sample of grade point averages of statistics students and she calculates the mean of this sample Under what conditions can that sample mean be treated as a value from a population having a normal distribution Select all that apply A The sample has more than 30 grade point averages B If the population of statistics students has a normal distribution C If the population of grade point averages has a normal distribution D The researcher collects more than 30 samples XITE

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