i.) An introductory stats professor hypothesizes that 50% of students learn best by watching the videos, 10% by reading the book, 20% by solving questions, and the rest from the discussion forums. She surveys a random sample of a large sample of students asking them how they learn best, and wants to use these data to evaluate her hypothesis. Which method should she use? a. t-test b. F-test c. hypothesis test for a single mean d. X^2 test of goodness of fit e. ANOVA f. X^2 test of independence g. Z-test   ii.) True or false: The χ2 statistic is always non-negative.

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