# Test Yourself

## True or False

#### Feedback

**True**

#### Feedback

**True**

**These data are paired and follow a normal distribution which is a requirement for small samples that use the t-distribution.**

#### Feedback

**False**

These data are paired and so need to be analysed as such using a paired t-test or one sample z-test.

## True-False Question

#### Feedback

**True**

**True: If the difference in the sample is in the opposite direction to the hypothesised difference for the one tailed test then the p-value will be greater than 0.5.**

#### Feedback

**True**

**True: This is the only information required to calculate a standard error and appropriate test statistic. However, we also need to ensure the conditions of the test and CI are met, which may require a look at the individual values in the sample.**

#### Feedback

**False**

**False: I would need the individual values to calculate the mean of the paired differences and SD. This information as well as the sample size are what is required to do a test and calculate a CI for simple paired data.**