True False

1. For a one sample confidence interval, the interval is calculated around the estimated population mean or standard (μm ).

2. The goodness of fit test null hypothesis states that the sample data does not match an expected distribution. 

3. The Chi-square test for independence needs a known (rather than calculated) expected distribution.

4. For a one sample confidence interval, the interval is calculated around the calculated sample mean (m). 

5. Confidence intervals provide an indication of how much variation exists in the data set.