Assume that on average undergraduate students drink 7.5 cups of coffee per week (with a population standard deviation of 4.7). A class of 19 psychology students drinks 5 cups on average per week.   Which of the following statistical tests should you run given this information? a. One sample z-test b. One sample t-test c. One sample p-test d. None of the above   Given the statistical test you are running for this example, what are the (two-tailed) critical values (alpha = .05)? a. -2.09 & 2.09 b. -1.96 & 1.96 c. Can't calculate from the information provided d. None of the above

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