Answer the following in a clear, comprehensive manner:

1. , describe what chi-square tests are(bothchi-square test of independence and chi-square test of goodnessof fit), and when &howthey are used.(150 to 200words)

• Provide clear examples to assist in your explanation.
• Avoid statistical-sounding language.

2. Complete "Time to Practice" problems in Chapter 17 (pg. 362-363)

• UseCHISQ.TESTfunction (and provide and interpretthe p-values)for problems #1, #2, & #4. (Include the Excel output in your submission.)
• For #3, explain your answer for EACH scenario/item --- four altogether (e.g., a clear rationale for whychi-square test is or is not appropriate for each research question.)
• Please note the use of scientific notation in some of the p-values.Ifyour p-value looks something like this:3.01305E-23 (with an "E" and a number at the end), it means: .0000000000000000000030105. (i.e., much less than .05). As such expression is difficult to include in a limited space, it is usually written as "p < .001."