A Recent Study Investigated Whether Vodka Is Less Likely to Give

question 16

Multiple Choice

A recent study investigated whether vodka is less likely to give you a hangover than wine. Twenty participants on a night out were asked to drink only vodka for the whole evening then rate how they felt the next day out of 10 (0 = I feel fantastic, 10 = I can't move my head in case it explodes) . The following month, they were asked to do the same again, only this time they were asked to drink only white wine. The t-score was 2.56. Which of the sentences below is correct?

• A)It is significant at the 1% level with a two-tailed test.
• B)It is not significant with a two-tailed test.
• C)It is significant at the 5% level but not the 1% level with a two-tailed test.
• D)It is not significant with a one-tailed test.

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