Which of the following statements is true regarding a hypothesis test on variance that uses the chi-square distribution?
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The test is valid only for large sample sizes (n≥ 30).
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The test statistic will follow a normal distribution only if the underlying population follows a chi-square distribution.
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The test is valid for any sample size, as long as the underlying population is normal.
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The test is valid for large sample sizes (n≥ 30) as long as the underlying population is normal.