Question: What is the critical value (from the table) for a left-tailed hypothesis test with sample size 20, when the population standard deviation is unknown? Consider

What is the critical value (from the table) for a left-tailed hypothesis test with sample size 20, when the population standard deviation is unknown? Consider alpha=0.05. O -1.725 O 1.729 O -1.729 O 1.725

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