Quiz: Introduction to Univariate Inferential Tests

1. Which of these tests would use a t-statistic rather than a z-statistic?
a. one sample proportion test
b. one sample mean test with a known population standard deviation
c. one sample mean test with an unknown population standard deviation
2. Which of these procedures would use a z-statistic rather than a t-statistic?
a. all one sample procedures
b. all confidence intervals
c. all proportion procedures
3. Which critical values depend on sample size?
a. t values
b. z values
c. both t and z values

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