# Chi-Square Analysis and Recovery

Using the definition of recovery provided, determine how many participants are recovered at the end of post-treatment and use a chi-square analysis to compare recovery rates across the three treatments at both post-treatment and follow-up.

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Using the definition of recovery provided, determine how many participants recovered at the end of post treatment and use a chi-square analysis to compare recovery rates across the three treatments at both posttreatment and follow-up.

Solution:

Chi-square

State the statistical assumptions for this test.

Assumptions:

1. The data or sample should be independent of each other.

2. The data should be ordinal or nominal.

3. No more than 20% of the cells have an expected frequency less than 5 for table larger than 2x2.

4. A sample size should be large enough to ...

#### Solution Summary

The solution uses the definition of recovery provided to determine how many participants are recovered at the end of a post-treatment. It uses a chi-squared analysis to compare recovery rates across the three treatments at both post-treatment and follow-up.