1.The US justice system considers an accused person innocentuntil proven guilty and there has to be proof beyond a reasonabledoubt to convict the accused. In recent years, several individualshave been released from prison because new DNA tests proved theminnocent. When the court originally convicted them (falsely as itturns out): (check all that apply)
| a. | They committed a type-II error |
| b. | They committed both a type-I and a type-II error |
| c. | They committed a type-I error |
| d. | They committed neither a type-I nor a type-II error |
2.In hypothesis testing, a Type 2 error occurs when (check allthat apply)
| a. | The null hypothesis is not rejected when the null hypothesis istrue. |
| b. | The null hypothesis is rejected when the alternative hypothesisis true. |
| c. | The null hypothesis is not rejected when the alternativehypothesis is true. |
| d. | The null hypothesis is rejected when the null hypothesis istrue. |
3.Null and alternative hypotheses are statements about: (checkall that apply)
| a. | population parameters. |
| b. | sample parameters. |
| c. | sample statistics. |
| d. | it depends - sometimes population parameters and sometimessample statistics. |
