# Chapter: Statistical Reasoning – t-Tests, Two-Way Tables, and NOVA

This table contains the results of a poll of congressional job approval in numbers of people.

Polling Organization | Approve | Disapprove |

News Network | 234 | 1186 |

Independent Company | 185 | 802 |

- Perform a chi-square test of independence using StatCrunch. Paste the results window here.

- In full sentences, tell me what are the null and alternative hypotheses for this chi-square test of independence? In your statements, be specific to the variables in the poll.

- What is the value of the chi-square statistic and what is the p-value?

- Given the values in number 3 above, should you reject or not reject the null hypothesis?

- Given your decision in number 4 above (based on the information in number 3 above), what is the conclusion of the hypothesis test of independence? Use full sentences and refer to the hypotheses in number 2 above in your explanation.