You will be provided the data used for each test. For each test listed, describe the test, the levels of measurement needed, and why it was used, and what conclusion you can make based on the analysis.

DATA and FILES

Data #1 for Chi-Square Analysis

Researchers studied the effect of an IV infiltration management program on a pediatric unit. The comparison group received routine management. The control group in this quasi-experimental study received the IV infiltration management program. The sample included 2894 IV insertions in the comparison group and 3651 in the experimental group. IV infiltration was measured on a scale of 0 to 4. The number of IV infiltrates in the comparison group was 127, with an infiltration rate of 4.4%. The number of IV infiltrates in the intervention group was 34, and the infiltration rate was 0.9%.

Infiltration incidence rate between comparison and experimental groups

Variables	Comparison Group	Experimental Group	x	p
Number of IV insertions	2894	3651	80.42	<0.001
Number of infiltrates	127	34
Infiltration Incidence rate (%)	4.4	0.9

1. Describe two of the three assumptions underlying the chi-square test

1. Level of measurement needed

1. Why the chi-square test was used

1. Conclusions are based on the interpretation of the statistical analysis of the chi-square test. Is there a significant statistical difference in the infiltration rates? Please explain why or why not.