Question: a. What, in general, is a test statistic? b. Which test statistic would you use for a two-sided t test? c. What, in general, is

a. What, in general, is a test statistic?
b. Which test statistic would you use for a two-sided t test?
c. What, in general, is a critical value?
d. Which critical value would you use for a two-sided t test?

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