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Sanders Santiago
07/30/2024 · Middle School

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. \( \square \) A. The researcher collects more than 30 samples. \( \square \) B. If the population of grade-point averages has a normal distribution. \( \square \) C. The sample has more than 30 grade-point averages. \( \square \) D. If the population of statistics students has a normal distribution.

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The sample mean can be treated as normally distributed if: - The population of grade-point averages has a normal distribution (B). - The sample has more than 30 grade-point averages (C).

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